Changeset 33c2952 in mainline for uspace/lib/c
- Timestamp:
- 2012-11-07T21:00:02Z (13 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- dcb0751
- Parents:
- fc89e32 (diff), 94795812 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the(diff)
links above to see all the changes relative to each parent. - Location:
- uspace/lib/c
- Files:
-
- 17 added
- 44 edited
Legend:
- Unmodified
- Added
- Removed
-
uspace/lib/c/Makefile
rfc89e32 r33c2952 71 71 generic/device/hw_res_parsed.c \ 72 72 generic/device/char_dev.c \ 73 generic/device/clock_dev.c \ 74 generic/device/battery_dev.c \ 73 75 generic/device/graph_dev.c \ 74 76 generic/device/nic.c \ 75 77 generic/device/pci.c \ 76 78 generic/device/ahci.c \ 79 generic/dlfcn.c \ 77 80 generic/elf/elf_load.c \ 78 81 generic/event.c \ … … 101 104 generic/io/printf.c \ 102 105 generic/io/log.c \ 106 generic/io/logctl.c \ 103 107 generic/io/klog.c \ 104 108 generic/io/snprintf.c \ … … 106 110 generic/io/vsnprintf.c \ 107 111 generic/io/printf_core.c \ 112 generic/io/con_srv.c \ 108 113 generic/io/console.c \ 109 114 generic/io/visualizer.c \ … … 111 116 generic/iplink.c \ 112 117 generic/iplink_srv.c \ 118 generic/ieee_double.c \ 119 generic/power_of_ten.c \ 120 generic/double_to_str.c \ 113 121 generic/malloc.c \ 114 122 generic/sysinfo.c \ … … 140 148 ifeq ($(CONFIG_RTLD),y) 141 149 GENERIC_SOURCES += \ 142 generic/dlfcn.c \143 150 generic/rtld/rtld.c \ 144 151 generic/rtld/dynamic.c \ -
uspace/lib/c/arch/abs32le/_link.ld.in
rfc89e32 r33c2952 15 15 #ifdef LOADER 16 16 . = 0x70001000 + SIZEOF_HEADERS; 17 18 .interp : {19 *(.interp);20 } :interp :text21 17 #else 22 18 . = 0x1000 + SIZEOF_HEADERS; 23 19 #endif 24 25 /* Make sure the code is aligned reasonably */26 . = ALIGN(., 16);27 20 28 21 .text : { … … 30 23 *(.rodata .rodata.*); 31 24 } :text 25 26 #ifdef LOADER 27 .interp : { 28 *(.interp); 29 } :interp :text 30 #endif 32 31 33 32 . = . + 0x1000; -
uspace/lib/c/arch/abs32le/include/types.h
rfc89e32 r33c2952 47 47 48 48 typedef uint32_t sysarg_t; 49 typedef int32_t native_t; 49 50 50 51 typedef int32_t ssize_t; -
uspace/lib/c/arch/amd64/_link.ld.in
rfc89e32 r33c2952 16 16 #ifdef LOADER 17 17 . = 0x70001000 + SIZEOF_HEADERS; 18 19 .interp : {20 *(.interp);21 } :interp :text22 18 #else 23 19 . = 0x1000 + SIZEOF_HEADERS; 24 20 #endif 25 26 /* Make sure the code is aligned reasonably */27 . = ALIGN(., 16);28 21 29 22 .init : { … … 35 28 *(.rodata .rodata.*); 36 29 } :text 30 31 #ifdef LOADER 32 .interp : { 33 *(.interp); 34 } :interp :text 35 #endif 37 36 38 37 . = . + 0x1000; -
uspace/lib/c/arch/amd64/include/types.h
rfc89e32 r33c2952 47 47 48 48 typedef uint64_t sysarg_t; 49 typedef int64_t native_t; 49 50 50 51 typedef int64_t ssize_t; -
uspace/lib/c/arch/arm32/Makefile.common
rfc89e32 r33c2952 28 28 # 29 29 30 GCC_CFLAGS += -ffixed-r9 -mtp=soft -fno-omit-frame-pointer -march=armv4 30 BASE_LIBS += $(LIBSOFTFLOAT_PREFIX)/libsoftfloat.a 31 GCC_CFLAGS += -ffixed-r9 -mtp=soft -fno-omit-frame-pointer -march=armv4 -mapcs-frame 31 32 32 33 ENDIANESS = LE -
uspace/lib/c/arch/arm32/_link.ld.in
rfc89e32 r33c2952 15 15 #ifdef LOADER 16 16 . = 0x70001000 + SIZEOF_HEADERS; 17 18 .interp : {19 *(.interp);20 } :interp :text21 17 #else 22 18 . = 0x1000 + SIZEOF_HEADERS; 23 19 #endif 24 25 /* Make sure the code is aligned reasonably */26 . = ALIGN(., 8);27 20 28 21 .init : { … … 34 27 *(.rodata .rodata.*); 35 28 } :text 29 30 #ifdef LOADER 31 .interp : { 32 *(.interp); 33 } :interp :text 34 #endif 36 35 37 36 . = . + 0x1000; -
uspace/lib/c/arch/arm32/include/types.h
rfc89e32 r33c2952 48 48 49 49 typedef uint32_t sysarg_t; 50 typedef int32_t native_t; 50 51 51 52 typedef int32_t ssize_t; -
uspace/lib/c/arch/ia32/_link.ld.in
rfc89e32 r33c2952 24 24 . = 0x1000 + SIZEOF_HEADERS; 25 25 #endif 26 27 #if defined(LOADER) || defined(DLEXE)28 .interp : {29 *(.interp);30 } :interp :text31 #endif32 33 /* Make sure the code is aligned reasonably */34 . = ALIGN(., 16);35 26 36 27 .init : { … … 71 62 } :text 72 63 #endif 64 65 #if defined(LOADER) || defined(DLEXE) 66 .interp : { 67 *(.interp); 68 } :interp :text 69 #endif 70 73 71 . = . + 0x1000; 74 72 -
uspace/lib/c/arch/ia32/include/types.h
rfc89e32 r33c2952 47 47 48 48 typedef uint32_t sysarg_t; 49 typedef int32_t native_t; 49 50 50 51 typedef int32_t ssize_t; -
uspace/lib/c/arch/ia64/_link.ld.in
rfc89e32 r33c2952 15 15 #ifdef LOADER 16 16 . = 0x800000000 + SIZEOF_HEADERS; 17 18 .interp : {19 *(.interp);20 } :interp :text21 17 #else 22 18 . = 0x4000 + SIZEOF_HEADERS; 23 19 #endif 24 20 25 /* Make sure the code is aligned reasonably*/21 /* Workaround proper alignment of the .init section */ 26 22 . = ALIGN(., 16); 27 23 … … 34 30 *(.rodata .rodata.*); 35 31 } :text 32 33 #ifdef LOADER 34 .interp : { 35 *(.interp); 36 } :interp :text 37 #endif 36 38 37 39 . = . + 0x4000; -
uspace/lib/c/arch/ia64/include/types.h
rfc89e32 r33c2952 57 57 58 58 typedef uint64_t sysarg_t; 59 typedef int64_t native_t; 59 60 60 61 typedef int64_t ssize_t; -
uspace/lib/c/arch/mips32/Makefile.common
rfc89e32 r33c2952 28 28 29 29 GCC_CFLAGS += -msoft-float -mips3 -mabi=32 30 BASE_LIBS += $(LIBSOFTFLOAT_PREFIX)/libsoftfloat.a 30 31 31 32 ENDIANESS = LE -
uspace/lib/c/arch/mips32/_link.ld.in
rfc89e32 r33c2952 15 15 #ifdef LOADER 16 16 . = 0x70004000 + SIZEOF_HEADERS; 17 18 .interp : {19 *(.interp);20 } :interp :text21 17 #else 22 18 . = 0x4000 + SIZEOF_HEADERS; 23 19 #endif 24 25 /* Make sure the code is aligned reasonably */26 . = ALIGN(., 16);27 20 28 21 .init : { … … 34 27 *(.rodata .rodata.*); 35 28 } :text 29 30 #ifdef LOADER 31 .interp : { 32 *(.interp); 33 } :interp :text 34 #endif 36 35 37 36 . = . + 0x4000; -
uspace/lib/c/arch/mips32/include/types.h
rfc89e32 r33c2952 48 48 49 49 typedef uint32_t sysarg_t; 50 typedef int32_t native_t; 50 51 51 52 typedef int32_t ssize_t; -
uspace/lib/c/arch/mips32eb/Makefile.common
rfc89e32 r33c2952 28 28 29 29 GCC_CFLAGS += -msoft-float -mips3 -mabi=32 30 BASE_LIBS += $(LIBSOFTFLOAT_PREFIX)/libsoftfloat.a 30 31 31 32 ENDIANESS = BE -
uspace/lib/c/arch/mips64/Makefile.common
rfc89e32 r33c2952 28 28 29 29 GCC_CFLAGS += -msoft-float -mips3 -mabi=64 30 BASE_LIBS += $(LIBSOFTFLOAT_PREFIX)/libsoftfloat.a 30 31 AFLAGS = -64 31 32 -
uspace/lib/c/arch/mips64/_link.ld.in
rfc89e32 r33c2952 16 16 #ifdef LOADER 17 17 . = 0x70004000 + SIZEOF_HEADERS; 18 19 .interp : {20 *(.interp);21 } :interp :text22 18 #else 23 19 . = 0x4000 + SIZEOF_HEADERS; 24 20 #endif 25 26 /* Make sure the code is aligned reasonably */27 . = ALIGN(., 16);28 21 29 22 .init : { … … 35 28 *(.rodata .rodata.*); 36 29 } :text 30 31 #ifdef LOADER 32 .interp : { 33 *(.interp); 34 } :interp :text 35 #endif 37 36 38 37 . = . + 0x4000; -
uspace/lib/c/arch/mips64/include/types.h
rfc89e32 r33c2952 48 48 49 49 typedef uint64_t sysarg_t; 50 typedef int64_t native_t; 50 51 51 52 typedef int64_t ssize_t; -
uspace/lib/c/arch/ppc32/Makefile.common
rfc89e32 r33c2952 28 28 29 29 GCC_CFLAGS += -mcpu=powerpc -msoft-float -m32 30 BASE_LIBS += $(LIBSOFTFLOAT_PREFIX)/libsoftfloat.a 30 31 AFLAGS = -a32 31 32 -
uspace/lib/c/arch/ppc32/_link.ld.in
rfc89e32 r33c2952 16 16 #ifdef LOADER 17 17 . = 0x70001000 + SIZEOF_HEADERS; 18 19 .interp : {20 *(.interp);21 } :interp :text22 18 #else 23 19 . = 0x1000 + SIZEOF_HEADERS; 24 20 #endif 25 26 /* Make sure the code is aligned reasonably */27 . = ALIGN(., 4);28 21 29 22 .init : { … … 35 28 *(.rodata .rodata.*); 36 29 } :text 30 31 #ifdef LOADER 32 .interp : { 33 *(.interp); 34 } :interp :text 35 #endif 37 36 38 37 . = . + 0x1000; -
uspace/lib/c/arch/ppc32/include/types.h
rfc89e32 r33c2952 47 47 48 48 typedef uint32_t sysarg_t; 49 typedef int32_t native_t; 49 50 50 51 typedef int32_t ssize_t; -
uspace/lib/c/arch/sparc64/_link.ld.in
rfc89e32 r33c2952 15 15 #ifdef LOADER 16 16 . = 0x70004000 + SIZEOF_HEADERS; 17 18 .interp : {19 *(.interp);20 } :interp :text21 17 #else 22 18 . = 0x4000 + SIZEOF_HEADERS; 23 19 #endif 24 25 /* Make sure the code is aligned reasonably */26 . = ALIGN(., 16);27 20 28 21 .init : { … … 34 27 *(.rodata .rodata.*); 35 28 } :text 29 30 #ifdef LOADER 31 .interp : { 32 *(.interp); 33 } :interp :text 34 #endif 36 35 37 36 . = . + 0x4000; -
uspace/lib/c/arch/sparc64/include/types.h
rfc89e32 r33c2952 47 47 48 48 typedef uint64_t sysarg_t; 49 typedef int64_t native_t; 49 50 50 51 typedef int64_t ssize_t; -
uspace/lib/c/generic/adt/hash_table.c
rfc89e32 r33c2952 62 62 63 63 64 static size_t round_up_size(size_t size);65 static bool alloc_table(size_t bucket_cnt, list_t **pbuckets);66 static void clear_items(hash_table_t * h);67 static void resize(hash_table_t * h, size_t new_bucket_cnt);68 static void grow_if_needed(hash_table_t * h);69 static void shrink_if_needed(hash_table_t * h);64 static size_t round_up_size(size_t); 65 static bool alloc_table(size_t, list_t **); 66 static void clear_items(hash_table_t *); 67 static void resize(hash_table_t *, size_t); 68 static void grow_if_needed(hash_table_t *); 69 static void shrink_if_needed(hash_table_t *); 70 70 71 71 /* Dummy do nothing callback to invoke in place of remove_callback == NULL. */ -
uspace/lib/c/generic/async.c
rfc89e32 r33c2952 416 416 .key_hash = client_key_hash, 417 417 .key_equal = client_key_equal, 418 .equal = 0,419 .remove_callback = 0418 .equal = NULL, 419 .remove_callback = NULL 420 420 }; 421 421 … … 452 452 .key_hash = conn_key_hash, 453 453 .key_equal = conn_key_equal, 454 .equal = 0,455 .remove_callback = 0454 .equal = NULL, 455 .remove_callback = NULL 456 456 }; 457 457 … … 628 628 629 629 if (usecs) { 630 get timeofday(&conn->wdata.to_event.expires, NULL);630 getuptime(&conn->wdata.to_event.expires); 631 631 tv_add(&conn->wdata.to_event.expires, usecs); 632 632 } else … … 947 947 { 948 948 struct timeval tv; 949 get timeofday(&tv, NULL);949 getuptime(&tv); 950 950 951 951 futex_down(&async_futex); … … 1004 1004 1005 1005 struct timeval tv; 1006 get timeofday(&tv, NULL);1006 getuptime(&tv); 1007 1007 1008 1008 if (tv_gteq(&tv, &waiter->to_event.expires)) { … … 1309 1309 timeout = 0; 1310 1310 1311 get timeofday(&msg->wdata.to_event.expires, NULL);1311 getuptime(&msg->wdata.to_event.expires); 1312 1312 tv_add(&msg->wdata.to_event.expires, timeout); 1313 1313 … … 1391 1391 msg->wdata.fid = fibril_get_id(); 1392 1392 1393 get timeofday(&msg->wdata.to_event.expires, NULL);1393 getuptime(&msg->wdata.to_event.expires); 1394 1394 tv_add(&msg->wdata.to_event.expires, timeout); 1395 1395 -
uspace/lib/c/generic/dlfcn.c
rfc89e32 r33c2952 38 38 #include <stdlib.h> 39 39 #include <dlfcn.h> 40 41 #ifdef CONFIG_RTLD 40 42 41 43 #include <rtld/module.h> … … 87 89 } 88 90 91 #else /* CONFIG_RTLD not defined */ 92 93 void *dlopen(const char *path, int flag) 94 { 95 return NULL; 96 } 97 98 void *dlsym(void *mod, const char *sym_name) 99 { 100 return NULL; 101 } 102 103 #endif 104 89 105 /** @} 90 106 */ -
uspace/lib/c/generic/fibril_synch.c
rfc89e32 r33c2952 379 379 futex_down(&async_futex); 380 380 if (timeout) { 381 get timeofday(&wdata.to_event.expires, NULL);381 getuptime(&wdata.to_event.expires); 382 382 tv_add(&wdata.to_event.expires, timeout); 383 383 async_insert_timeout(&wdata); -
uspace/lib/c/generic/io/console.c
rfc89e32 r33c2952 38 38 #include <async.h> 39 39 #include <errno.h> 40 #include <stdio.h>41 40 #include <malloc.h> 42 41 #include <vfs/vfs_sess.h> … … 126 125 { 127 126 async_exch_t *exch = async_exchange_begin(ctrl->output_sess); 128 async_req_1_0(exch, CONSOLE_ CURSOR_VISIBILITY, (show != false));127 async_req_1_0(exch, CONSOLE_SET_CURSOR_VISIBILITY, (show != false)); 129 128 async_exchange_end(exch); 130 129 } … … 151 150 { 152 151 async_exch_t *exch = async_exchange_begin(ctrl->output_sess); 153 async_req_2_0(exch, CONSOLE_ GOTO, col, row);152 async_req_2_0(exch, CONSOLE_SET_POS, col, row); 154 153 async_exchange_end(exch); 155 154 } -
uspace/lib/c/generic/io/input.c
rfc89e32 r33c2952 143 143 x = IPC_GET_ARG1(*call); 144 144 y = IPC_GET_ARG2(*call); 145 max_x = IPC_GET_ARG 2(*call);146 max_y = IPC_GET_ARG 3(*call);145 max_x = IPC_GET_ARG3(*call); 146 max_y = IPC_GET_ARG4(*call); 147 147 148 148 rc = input->ev_ops->abs_move(input, x, y, max_x, max_y); -
uspace/lib/c/generic/io/log.c
rfc89e32 r33c2952 38 38 #include <stdlib.h> 39 39 #include <stdio.h> 40 40 #include <async.h> 41 41 #include <io/log.h> 42 43 /** Serialization mutex for logging functions. */ 44 static FIBRIL_MUTEX_INITIALIZE(log_serializer); 45 46 /** Current log level. */ 47 static log_level_t log_level; 48 49 static FILE *log_stream; 50 42 #include <ipc/logger.h> 43 #include <ns.h> 44 45 /** Id of the first log we create at logger. */ 46 static sysarg_t default_log_id; 47 48 /** Log messages are printed under this name. */ 51 49 static const char *log_prog_name; 52 50 53 /** Prefixes for individual logging levels. */51 /** Names of individual log levels. */ 54 52 static const char *log_level_names[] = { 55 [LVL_FATAL] = "Fatal error", 56 [LVL_ERROR] = "Error", 57 [LVL_WARN] = "Warning", 58 [LVL_NOTE] = "Note", 59 [LVL_DEBUG] = "Debug", 60 [LVL_DEBUG2] = "Debug2" 53 "fatal", 54 "error", 55 "warn", 56 "note", 57 "debug", 58 "debug2", 59 NULL 61 60 }; 62 61 62 /** IPC session with the logger service. */ 63 static async_sess_t *logger_session; 64 65 /** Maximum length of a single log message (in bytes). */ 66 #define MESSAGE_BUFFER_SIZE 4096 67 68 /** Send formatted message to the logger service. 69 * 70 * @param session Initialized IPC session with the logger. 71 * @param log Log to use. 72 * @param level Verbosity level of the message. 73 * @param message The actual message. 74 * @return Error code of the conversion or EOK on success. 75 */ 76 static int logger_message(async_sess_t *session, log_t log, log_level_t level, char *message) 77 { 78 async_exch_t *exchange = async_exchange_begin(session); 79 if (exchange == NULL) { 80 return ENOMEM; 81 } 82 if (log == LOG_DEFAULT) 83 log = default_log_id; 84 85 // FIXME: remove when all USB drivers use libc logging explicitly 86 str_rtrim(message, '\n'); 87 88 aid_t reg_msg = async_send_2(exchange, LOGGER_WRITER_MESSAGE, 89 log, level, NULL); 90 int rc = async_data_write_start(exchange, message, str_size(message)); 91 sysarg_t reg_msg_rc; 92 async_wait_for(reg_msg, ®_msg_rc); 93 94 async_exchange_end(exchange); 95 96 /* 97 * Getting ENAK means no-one wants our message. That is not an 98 * error at all. 99 */ 100 if (rc == ENAK) 101 rc = EOK; 102 103 if (rc != EOK) { 104 return rc; 105 } 106 107 return reg_msg_rc; 108 } 109 110 /** Get name of the log level. 111 * 112 * @param level The log level. 113 * @return String name or "unknown". 114 */ 115 const char *log_level_str(log_level_t level) 116 { 117 if (level >= LVL_LIMIT) 118 return "unknown"; 119 else 120 return log_level_names[level]; 121 } 122 123 /** Convert log level name to the enum. 124 * 125 * @param[in] name Log level name or log level number. 126 * @param[out] level_out Where to store the result (set to NULL to ignore). 127 * @return Error code of the conversion or EOK on success. 128 */ 129 int log_level_from_str(const char *name, log_level_t *level_out) 130 { 131 log_level_t level = LVL_FATAL; 132 133 while (log_level_names[level] != NULL) { 134 if (str_cmp(name, log_level_names[level]) == 0) { 135 if (level_out != NULL) 136 *level_out = level; 137 return EOK; 138 } 139 level++; 140 } 141 142 /* Maybe user specified number directly. */ 143 char *end_ptr; 144 int level_int = strtol(name, &end_ptr, 0); 145 if ((end_ptr == name) || (str_length(end_ptr) != 0)) 146 return EINVAL; 147 if (level_int < 0) 148 return ERANGE; 149 if (level_int >= (int) LVL_LIMIT) 150 return ERANGE; 151 152 if (level_out != NULL) 153 *level_out = (log_level_t) level_int; 154 155 return EOK; 156 } 157 63 158 /** Initialize the logging system. 64 159 * 65 * @param prog_name Program name, will be printed as part of message 66 * @param level Minimum message level to print 67 */ 68 int log_init(const char *prog_name, log_level_t level) 69 { 70 assert(level < LVL_LIMIT); 71 log_level = level; 72 73 log_stream = stdout; 160 * @param prog_name Program name, will be printed as part of message 161 */ 162 int log_init(const char *prog_name) 163 { 74 164 log_prog_name = str_dup(prog_name); 75 165 if (log_prog_name == NULL) 76 166 return ENOMEM; 77 167 168 logger_session = service_connect_blocking(EXCHANGE_SERIALIZE, SERVICE_LOGGER, LOGGER_INTERFACE_WRITER, 0); 169 if (logger_session == NULL) { 170 return ENOMEM; 171 } 172 173 default_log_id = log_create(prog_name, LOG_NO_PARENT); 174 78 175 return EOK; 79 176 } 80 177 178 /** Create a new (sub-) log. 179 * 180 * This function always returns a valid log_t. In case of errors, 181 * @c parent is returned and errors are silently ignored. 182 * 183 * @param name Log name under which message will be reported (appended to parents name). 184 * @param parent Parent log. 185 * @return Opaque identifier of the newly created log. 186 */ 187 log_t log_create(const char *name, log_t parent) 188 { 189 async_exch_t *exchange = async_exchange_begin(logger_session); 190 if (exchange == NULL) 191 return parent; 192 193 if (parent == LOG_DEFAULT) 194 parent = default_log_id; 195 196 ipc_call_t answer; 197 aid_t reg_msg = async_send_1(exchange, LOGGER_WRITER_CREATE_LOG, 198 parent, &answer); 199 int rc = async_data_write_start(exchange, name, str_size(name)); 200 sysarg_t reg_msg_rc; 201 async_wait_for(reg_msg, ®_msg_rc); 202 203 async_exchange_end(exchange); 204 205 if ((rc != EOK) || (reg_msg_rc != EOK)) 206 return parent; 207 208 return IPC_GET_ARG1(answer); 209 } 210 81 211 /** Write an entry to the log. 82 212 * 83 * @param level Message verbosity level. Message is only printed 84 * if verbosity is less than or equal to current 85 * reporting level. 86 * @param fmt Format string (no traling newline). 87 */ 88 void log_msg(log_level_t level, const char *fmt, ...) 213 * The message is printed only if the verbosity level is less than or 214 * equal to currently set reporting level of the log. 215 * 216 * @param ctx Log to use (use LOG_DEFAULT if you have no idea what it means). 217 * @param level Severity level of the message. 218 * @param fmt Format string in printf-like format (without trailing newline). 219 */ 220 void log_msg(log_t ctx, log_level_t level, const char *fmt, ...) 89 221 { 90 222 va_list args; 91 223 92 224 va_start(args, fmt); 93 log_msgv( level, fmt, args);225 log_msgv(ctx, level, fmt, args); 94 226 va_end(args); 95 227 } … … 97 229 /** Write an entry to the log (va_list variant). 98 230 * 99 * @param level Message verbosity level. Message is only printed100 * if verbosity is less than or equal to current101 * reporting level.102 * @param fmt Format string (no trailing newline)103 */ 104 void log_msgv(log_ level_t level, const char *fmt, va_list args)231 * @param ctx Log to use (use LOG_DEFAULT if you have no idea what it means). 232 * @param level Severity level of the message. 233 * @param fmt Format string in printf-like format (without trailing newline). 234 * @param args Arguments. 235 */ 236 void log_msgv(log_t ctx, log_level_t level, const char *fmt, va_list args) 105 237 { 106 238 assert(level < LVL_LIMIT); 107 239 108 /* Higher number means higher verbosity. */ 109 if (level <= log_level) { 110 fibril_mutex_lock(&log_serializer); 111 112 fprintf(log_stream, "%s: %s: ", log_prog_name, 113 log_level_names[level]); 114 vfprintf(log_stream, fmt, args); 115 fputc('\n', log_stream); 116 fflush(log_stream); 117 118 fibril_mutex_unlock(&log_serializer); 119 } 240 char *message_buffer = malloc(MESSAGE_BUFFER_SIZE); 241 if (message_buffer == NULL) 242 return; 243 244 vsnprintf(message_buffer, MESSAGE_BUFFER_SIZE, fmt, args); 245 logger_message(logger_session, ctx, level, message_buffer); 246 free(message_buffer); 120 247 } 121 248 -
uspace/lib/c/generic/io/output.c
rfc89e32 r33c2952 37 37 #include <as.h> 38 38 #include <ipc/output.h> 39 #include <io/concaps.h> 39 40 #include <io/output.h> 40 41 -
uspace/lib/c/generic/io/printf_core.c
rfc89e32 r33c2952 42 42 #include <ctype.h> 43 43 #include <str.h> 44 #include <double_to_str.h> 45 #include <ieee_double.h> 46 #include <assert.h> 47 #include <macros.h> 48 44 49 45 50 /** show prefixes 0x or 0 */ 46 51 #define __PRINTF_FLAG_PREFIX 0x00000001 47 52 53 /** show the decimal point even if no fractional digits present */ 54 #define __PRINTF_FLAG_DECIMALPT 0x00000001 55 48 56 /** signed / unsigned number */ 49 57 #define __PRINTF_FLAG_SIGNED 0x00000002 … … 66 74 /** number has - sign */ 67 75 #define __PRINTF_FLAG_NEGATIVE 0x00000100 76 77 /** don't print trailing zeros in the fractional part */ 78 #define __PRINTF_FLAG_NOFRACZEROS 0x00000200 79 68 80 69 81 /** … … 110 122 static const char invalch = U_SPECIAL; 111 123 124 125 126 /** Unformatted double number string representation. */ 127 typedef struct { 128 /** Buffer with len digits, no sign or leading zeros. */ 129 char *str; 130 /** Number of digits in str. */ 131 int len; 132 /** Decimal exponent, ie number = str * 10^dec_exp */ 133 int dec_exp; 134 /** True if negative. */ 135 bool neg; 136 } double_str_t; 137 138 139 140 /** Returns the sign character or 0 if no sign should be printed. */ 141 static int get_sign_char(bool negative, uint32_t flags) 142 { 143 if (negative) { 144 return '-'; 145 } else if (flags & __PRINTF_FLAG_SHOWPLUS) { 146 return '+'; 147 } else if (flags & __PRINTF_FLAG_SPACESIGN) { 148 return ' '; 149 } else { 150 return 0; 151 } 152 } 153 154 /** Prints count times character ch. */ 155 static int print_padding(char ch, int count, printf_spec_t *ps) 156 { 157 for (int i = 0; i < count; ++i) { 158 if (ps->str_write(&ch, 1, ps->data) < 0) { 159 return -1; 160 } 161 } 162 163 return count; 164 } 165 166 112 167 /** Print one or more characters without adding newline. 113 168 * … … 281 336 return printf_putstr(nullstr, ps); 282 337 283 /* Print leading spaces. */284 338 size_t strw = str_length(str); 339 340 /* Precision unspecified - print everything. */ 285 341 if ((precision == 0) || (precision > strw)) 286 342 precision = strw; … … 329 385 return printf_putstr(nullstr, ps); 330 386 331 /* Print leading spaces. */332 387 size_t strw = wstr_length(str); 388 389 /* Precision not specified - print everything. */ 333 390 if ((precision == 0) || (precision > strw)) 334 391 precision = strw; … … 377 434 uint32_t flags, printf_spec_t *ps) 378 435 { 436 /* Precision not specified. */ 437 if (precision < 0) { 438 precision = 0; 439 } 440 379 441 const char *digits; 380 442 if (flags & __PRINTF_FLAG_BIGCHARS) … … 525 587 526 588 return ((int) counter); 589 } 590 591 /** Prints a special double (ie NaN, infinity) padded to width characters. */ 592 static int print_special(ieee_double_t val, int width, uint32_t flags, 593 printf_spec_t *ps) 594 { 595 assert(val.is_special); 596 597 char sign = get_sign_char(val.is_negative, flags); 598 599 const int str_len = 3; 600 const char *str; 601 602 if (flags & __PRINTF_FLAG_BIGCHARS) { 603 str = val.is_infinity ? "INF" : "NAN"; 604 } else { 605 str = val.is_infinity ? "inf" : "nan"; 606 } 607 608 int padding_len = max(0, width - ((sign ? 1 : 0) + str_len)); 609 610 int counter = 0; 611 int ret; 612 613 /* Leading padding. */ 614 if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { 615 if ((ret = print_padding(' ', padding_len, ps)) < 0) 616 return -1; 617 618 counter += ret; 619 } 620 621 if (sign) { 622 if ((ret = ps->str_write(&sign, 1, ps->data)) < 0) 623 return -1; 624 625 counter += ret; 626 } 627 628 if ((ret = ps->str_write(str, str_len, ps->data)) < 0) 629 return -1; 630 631 counter += ret; 632 633 634 /* Trailing padding. */ 635 if (flags & __PRINTF_FLAG_LEFTALIGNED) { 636 if ((ret = print_padding(' ', padding_len, ps)) < 0) 637 return -1; 638 639 counter += ret; 640 } 641 642 return counter; 643 } 644 645 /** Trims trailing zeros but leaves a single "0" intact. */ 646 static void fp_trim_trailing_zeros(char *buf, int *len, int *dec_exp) 647 { 648 /* Cut the zero off by adjusting the exponent. */ 649 while (2 <= *len && '0' == buf[*len - 1]) { 650 --*len; 651 ++*dec_exp; 652 } 653 } 654 655 /** Textually round up the last digit thereby eliminating it. */ 656 static void fp_round_up(char *buf, int *len, int *dec_exp) 657 { 658 assert(1 <= *len); 659 660 char *last_digit = &buf[*len - 1]; 661 662 int carry = ('5' <= *last_digit); 663 664 /* Cut the digit off by adjusting the exponent. */ 665 --*len; 666 ++*dec_exp; 667 --last_digit; 668 669 if (carry) { 670 /* Skip all the digits to cut off/round to zero. */ 671 while (buf <= last_digit && '9' == *last_digit) { 672 --last_digit; 673 } 674 675 /* last_digit points to the last digit to round but not '9' */ 676 if (buf <= last_digit) { 677 *last_digit += 1; 678 int new_len = last_digit - buf + 1; 679 *dec_exp += *len - new_len; 680 *len = new_len; 681 } else { 682 /* All len digits rounded to 0. */ 683 buf[0] = '1'; 684 *dec_exp += *len; 685 *len = 1; 686 } 687 } else { 688 /* The only digit was rounded to 0. */ 689 if (last_digit < buf) { 690 buf[0] = '0'; 691 *dec_exp = 0; 692 *len = 1; 693 } 694 } 695 } 696 697 698 /** Format and print the double string repressentation according 699 * to the %f specifier. 700 */ 701 static int print_double_str_fixed(double_str_t *val_str, int precision, int width, 702 uint32_t flags, printf_spec_t *ps) 703 { 704 int len = val_str->len; 705 char *buf = val_str->str; 706 int dec_exp = val_str->dec_exp; 707 708 assert(0 < len); 709 assert(0 <= precision); 710 assert(0 <= dec_exp || -dec_exp <= precision); 711 712 /* Number of integral digits to print (at least leading zero). */ 713 int int_len = max(1, len + dec_exp); 714 715 char sign = get_sign_char(val_str->neg, flags); 716 717 /* Fractional portion lengths. */ 718 int last_frac_signif_pos = max(0, -dec_exp); 719 int leading_frac_zeros = max(0, last_frac_signif_pos - len); 720 int signif_frac_figs = min(last_frac_signif_pos, len); 721 int trailing_frac_zeros = precision - last_frac_signif_pos; 722 char *buf_frac = buf + len - signif_frac_figs; 723 724 if (flags & __PRINTF_FLAG_NOFRACZEROS) { 725 trailing_frac_zeros = 0; 726 } 727 728 int frac_len = leading_frac_zeros + signif_frac_figs + trailing_frac_zeros; 729 730 bool has_decimal_pt = (0 < frac_len) || (flags & __PRINTF_FLAG_DECIMALPT); 731 732 /* Number of non-padding chars to print. */ 733 int num_len = (sign ? 1 : 0) + int_len + (has_decimal_pt ? 1 : 0) + frac_len; 734 735 int padding_len = max(0, width - num_len); 736 int ret = 0; 737 int counter = 0; 738 739 /* Leading padding and sign. */ 740 741 if (!(flags & (__PRINTF_FLAG_LEFTALIGNED | __PRINTF_FLAG_ZEROPADDED))) { 742 if ((ret = print_padding(' ', padding_len, ps)) < 0) 743 return -1; 744 745 counter += ret; 746 } 747 748 if (sign) { 749 if ((ret = ps->str_write(&sign, 1, ps->data)) < 0) 750 return -1; 751 752 counter += ret; 753 } 754 755 if (flags & __PRINTF_FLAG_ZEROPADDED) { 756 if ((ret = print_padding('0', padding_len, ps)) < 0) 757 return -1; 758 759 counter += ret; 760 } 761 762 /* Print the intergral part of the buffer. */ 763 764 int buf_int_len = min(len, len + dec_exp); 765 766 if (0 < buf_int_len) { 767 if ((ret = ps->str_write(buf, buf_int_len, ps->data)) < 0) 768 return -1; 769 770 counter += ret; 771 772 /* Print trailing zeros of the integral part of the number. */ 773 if ((ret = print_padding('0', int_len - buf_int_len, ps)) < 0) 774 return -1; 775 } else { 776 /* Single leading integer 0. */ 777 char ch = '0'; 778 if ((ret = ps->str_write(&ch, 1, ps->data)) < 0) 779 return -1; 780 } 781 782 counter += ret; 783 784 /* Print the decimal point and the fractional part. */ 785 if (has_decimal_pt) { 786 char ch = '.'; 787 788 if ((ret = ps->str_write(&ch, 1, ps->data)) < 0) 789 return -1; 790 791 counter += ret; 792 793 /* Print leading zeros of the fractional part of the number. */ 794 if ((ret = print_padding('0', leading_frac_zeros, ps)) < 0) 795 return -1; 796 797 counter += ret; 798 799 /* Print significant digits of the fractional part of the number. */ 800 if (0 < signif_frac_figs) { 801 if ((ret = ps->str_write(buf_frac, signif_frac_figs, ps->data)) < 0) 802 return -1; 803 804 counter += ret; 805 } 806 807 /* Print trailing zeros of the fractional part of the number. */ 808 if ((ret = print_padding('0', trailing_frac_zeros, ps)) < 0) 809 return -1; 810 811 counter += ret; 812 } 813 814 /* Trailing padding. */ 815 if (flags & __PRINTF_FLAG_LEFTALIGNED) { 816 if ((ret = print_padding(' ', padding_len, ps)) < 0) 817 return -1; 818 819 counter += ret; 820 } 821 822 return counter; 823 } 824 825 826 /** Convert, format and print a double according to the %f specifier. 827 * 828 * @param g Double to print. 829 * @param precision Number of fractional digits to print. If 0 no 830 * decimal point will be printed unless the flag 831 * __PRINTF_FLAG_DECIMALPT is specified. 832 * @param width Minimum number of characters to display. Pads 833 * with '0' or ' ' depending on the set flags; 834 * @param flags Printf flags. 835 * @param ps Printing functions. 836 * 837 * @return The number of characters printed; negative on failure. 838 */ 839 static int print_double_fixed(double g, int precision, int width, uint32_t flags, 840 printf_spec_t *ps) 841 { 842 if (flags & __PRINTF_FLAG_LEFTALIGNED) { 843 flags &= ~__PRINTF_FLAG_ZEROPADDED; 844 } 845 846 if (flags & __PRINTF_FLAG_DECIMALPT) { 847 flags &= ~__PRINTF_FLAG_NOFRACZEROS; 848 } 849 850 ieee_double_t val = extract_ieee_double(g); 851 852 if (val.is_special) { 853 return print_special(val, width, flags, ps); 854 } 855 856 char buf[MAX_DOUBLE_STR_BUF_SIZE]; 857 const size_t buf_size = MAX_DOUBLE_STR_BUF_SIZE; 858 double_str_t val_str; 859 860 val_str.str = buf; 861 val_str.neg = val.is_negative; 862 863 if (0 <= precision) { 864 /* 865 * Request one more digit so we can round the result. The last 866 * digit it returns may have an error of at most +/- 1. 867 */ 868 val_str.len = double_to_fixed_str(val, -1, precision + 1, buf, buf_size, 869 &val_str.dec_exp); 870 871 /* 872 * Round using the last digit to produce precision fractional digits. 873 * If less than precision+1 fractional digits were output the last 874 * digit is definitely inaccurate so also round to get rid of it. 875 */ 876 fp_round_up(buf, &val_str.len, &val_str.dec_exp); 877 878 /* Rounding could have introduced trailing zeros. */ 879 if (flags & __PRINTF_FLAG_NOFRACZEROS) { 880 fp_trim_trailing_zeros(buf, &val_str.len, &val_str.dec_exp); 881 } 882 } else { 883 /* Let the implementation figure out the proper precision. */ 884 val_str.len = double_to_short_str(val, buf, buf_size, &val_str.dec_exp); 885 886 /* Precision needed for the last significant digit. */ 887 precision = max(0, -val_str.dec_exp); 888 } 889 890 return print_double_str_fixed(&val_str, precision, width, flags, ps); 891 } 892 893 /** Prints the decimal exponent part of a %e specifier formatted number. */ 894 static int print_exponent(int exp_val, uint32_t flags, printf_spec_t *ps) 895 { 896 int counter = 0; 897 int ret; 898 899 char exp_ch = (flags & __PRINTF_FLAG_BIGCHARS) ? 'E' : 'e'; 900 901 if ((ret = ps->str_write(&exp_ch, 1, ps->data)) < 0) 902 return -1; 903 904 counter += ret; 905 906 char exp_sign = (exp_val < 0) ? '-' : '+'; 907 908 if ((ret = ps->str_write(&exp_sign, 1, ps->data)) < 0) 909 return -1; 910 911 counter += ret; 912 913 /* Print the exponent. */ 914 exp_val = abs(exp_val); 915 916 char exp_str[4] = { 0 }; 917 918 exp_str[0] = '0' + exp_val / 100; 919 exp_str[1] = '0' + (exp_val % 100) / 10 ; 920 exp_str[2] = '0' + (exp_val % 10); 921 922 int exp_len = (exp_str[0] == '0') ? 2 : 3; 923 const char *exp_str_start = &exp_str[3] - exp_len; 924 925 if ((ret = ps->str_write(exp_str_start, exp_len, ps->data)) < 0) 926 return -1; 927 928 counter += ret; 929 930 return counter; 931 } 932 933 934 /** Format and print the double string repressentation according 935 * to the %e specifier. 936 */ 937 static int print_double_str_scient(double_str_t *val_str, int precision, 938 int width, uint32_t flags, printf_spec_t *ps) 939 { 940 int len = val_str->len; 941 int dec_exp = val_str->dec_exp; 942 char *buf = val_str->str; 943 944 assert(0 < len); 945 946 char sign = get_sign_char(val_str->neg, flags); 947 bool has_decimal_pt = (0 < precision) || (flags & __PRINTF_FLAG_DECIMALPT); 948 int dec_pt_len = has_decimal_pt ? 1 : 0; 949 950 /* Fractional part lengths. */ 951 int signif_frac_figs = len - 1; 952 int trailing_frac_zeros = precision - signif_frac_figs; 953 954 if (flags & __PRINTF_FLAG_NOFRACZEROS) { 955 trailing_frac_zeros = 0; 956 } 957 958 int frac_len = signif_frac_figs + trailing_frac_zeros; 959 960 int exp_val = dec_exp + len - 1; 961 /* Account for exponent sign and 'e'; minimum 2 digits. */ 962 int exp_len = 2 + (abs(exp_val) >= 100 ? 3 : 2); 963 964 /* Number of non-padding chars to print. */ 965 int num_len = (sign ? 1 : 0) + 1 + dec_pt_len + frac_len + exp_len; 966 967 int padding_len = max(0, width - num_len); 968 int ret = 0; 969 int counter = 0; 970 971 if (!(flags & (__PRINTF_FLAG_LEFTALIGNED | __PRINTF_FLAG_ZEROPADDED))) { 972 if ((ret = print_padding(' ', padding_len, ps)) < 0) 973 return -1; 974 975 counter += ret; 976 } 977 978 if (sign) { 979 if ((ret = ps->str_write(&sign, 1, ps->data)) < 0) 980 return -1; 981 982 counter += ret; 983 } 984 985 if (flags & __PRINTF_FLAG_ZEROPADDED) { 986 if ((ret = print_padding('0', padding_len, ps)) < 0) 987 return -1; 988 989 counter += ret; 990 } 991 992 /* Single leading integer. */ 993 if ((ret = ps->str_write(buf, 1, ps->data)) < 0) 994 return -1; 995 996 counter += ret; 997 998 /* Print the decimal point and the fractional part. */ 999 if (has_decimal_pt) { 1000 char ch = '.'; 1001 1002 if ((ret = ps->str_write(&ch, 1, ps->data)) < 0) 1003 return -1; 1004 1005 counter += ret; 1006 1007 /* Print significant digits of the fractional part of the number. */ 1008 if (0 < signif_frac_figs) { 1009 if ((ret = ps->str_write(buf + 1, signif_frac_figs, ps->data)) < 0) 1010 return -1; 1011 1012 counter += ret; 1013 } 1014 1015 /* Print trailing zeros of the fractional part of the number. */ 1016 if ((ret = print_padding('0', trailing_frac_zeros, ps)) < 0) 1017 return -1; 1018 1019 counter += ret; 1020 } 1021 1022 /* Print the exponent. */ 1023 if ((ret = print_exponent(exp_val, flags, ps)) < 0) 1024 return -1; 1025 1026 counter += ret; 1027 1028 if (flags & __PRINTF_FLAG_LEFTALIGNED) { 1029 if ((ret = print_padding(' ', padding_len, ps)) < 0) 1030 return -1; 1031 1032 counter += ret; 1033 } 1034 1035 return counter; 1036 } 1037 1038 1039 /** Convert, format and print a double according to the %e specifier. 1040 * 1041 * Note that if g is large, the output may be huge (3e100 prints 1042 * with at least 100 digits). 1043 * 1044 * %e style: [-]d.dddde+dd 1045 * left-justified: [-]d.dddde+dd[space_pad] 1046 * right-justified: [space_pad][-][zero_pad]d.dddde+dd 1047 * 1048 * @param g Double to print. 1049 * @param precision Number of fractional digits to print, ie 1050 * precision + 1 significant digits to display. If 0 no 1051 * decimal point will be printed unless the flag 1052 * __PRINTF_FLAG_DECIMALPT is specified. If negative 1053 * the shortest accurate number will be printed. 1054 * @param width Minimum number of characters to display. Pads 1055 * with '0' or ' ' depending on the set flags; 1056 * @param flags Printf flags. 1057 * @param ps Printing functions. 1058 * 1059 * @return The number of characters printed; negative on failure. 1060 */ 1061 static int print_double_scientific(double g, int precision, int width, 1062 uint32_t flags, printf_spec_t *ps) 1063 { 1064 if (flags & __PRINTF_FLAG_LEFTALIGNED) { 1065 flags &= ~__PRINTF_FLAG_ZEROPADDED; 1066 } 1067 1068 ieee_double_t val = extract_ieee_double(g); 1069 1070 if (val.is_special) { 1071 return print_special(val, width, flags, ps); 1072 } 1073 1074 char buf[MAX_DOUBLE_STR_BUF_SIZE]; 1075 const size_t buf_size = MAX_DOUBLE_STR_BUF_SIZE; 1076 double_str_t val_str; 1077 1078 val_str.str = buf; 1079 val_str.neg = val.is_negative; 1080 1081 if (0 <= precision) { 1082 /* 1083 * Request one more digit (in addition to the leading integer) 1084 * so we can round the result. The last digit it returns may 1085 * have an error of at most +/- 1. 1086 */ 1087 val_str.len = double_to_fixed_str(val, precision + 2, -1, buf, buf_size, 1088 &val_str.dec_exp); 1089 1090 /* 1091 * Round the extra digit to produce precision+1 significant digits. 1092 * If less than precision+2 significant digits were returned the last 1093 * digit is definitely inaccurate so also round to get rid of it. 1094 */ 1095 fp_round_up(buf, &val_str.len, &val_str.dec_exp); 1096 1097 /* Rounding could have introduced trailing zeros. */ 1098 if (flags & __PRINTF_FLAG_NOFRACZEROS) { 1099 fp_trim_trailing_zeros(buf, &val_str.len, &val_str.dec_exp); 1100 } 1101 } else { 1102 /* Let the implementation figure out the proper precision. */ 1103 val_str.len = double_to_short_str(val, buf, buf_size, &val_str.dec_exp); 1104 1105 /* Use all produced digits. */ 1106 precision = val_str.len - 1; 1107 } 1108 1109 return print_double_str_scient(&val_str, precision, width, flags, ps); 1110 } 1111 1112 1113 /** Convert, format and print a double according to the %g specifier. 1114 * 1115 * %g style chooses between %f and %e. 1116 * 1117 * @param g Double to print. 1118 * @param precision Number of significant digits to display; excluding 1119 * any leading zeros from this count. If negative 1120 * the shortest accurate number will be printed. 1121 * @param width Minimum number of characters to display. Pads 1122 * with '0' or ' ' depending on the set flags; 1123 * @param flags Printf flags. 1124 * @param ps Printing functions. 1125 * 1126 * @return The number of characters printed; negative on failure. 1127 */ 1128 static int print_double_generic(double g, int precision, int width, 1129 uint32_t flags, printf_spec_t *ps) 1130 { 1131 ieee_double_t val = extract_ieee_double(g); 1132 1133 if (val.is_special) { 1134 return print_special(val, width, flags, ps); 1135 } 1136 1137 char buf[MAX_DOUBLE_STR_BUF_SIZE]; 1138 const size_t buf_size = MAX_DOUBLE_STR_BUF_SIZE; 1139 int dec_exp; 1140 int len; 1141 1142 /* Honor the user requested number of significant digits. */ 1143 if (0 <= precision) { 1144 /* 1145 * Do a quick and dirty conversion of a single digit to determine 1146 * the decimal exponent. 1147 */ 1148 len = double_to_fixed_str(val, 1, -1, buf, buf_size, &dec_exp); 1149 assert(0 < len); 1150 1151 precision = max(1, precision); 1152 1153 if (-4 <= dec_exp && dec_exp < precision) { 1154 precision = precision - (dec_exp + 1); 1155 return print_double_fixed(g, precision, width, 1156 flags | __PRINTF_FLAG_NOFRACZEROS, ps); 1157 } else { 1158 --precision; 1159 return print_double_scientific(g, precision, width, 1160 flags | __PRINTF_FLAG_NOFRACZEROS, ps); 1161 } 1162 } else { 1163 /* Convert to get the decimal exponent and digit count.*/ 1164 len = double_to_short_str(val, buf, buf_size, &dec_exp); 1165 assert(0 < len); 1166 1167 if (flags & __PRINTF_FLAG_LEFTALIGNED) { 1168 flags &= ~__PRINTF_FLAG_ZEROPADDED; 1169 } 1170 1171 double_str_t val_str; 1172 val_str.str = buf; 1173 val_str.len = len; 1174 val_str.neg = val.is_negative; 1175 val_str.dec_exp = dec_exp; 1176 1177 int first_digit_pos = len + dec_exp; 1178 int last_digit_pos = dec_exp; 1179 1180 /* The whole number (15 digits max) fits between dec places 15 .. -6 */ 1181 if (len <= 15 && -6 <= last_digit_pos && first_digit_pos <= 15) { 1182 /* Precision needed for the last significant digit. */ 1183 precision = max(0, -val_str.dec_exp); 1184 return print_double_str_fixed(&val_str, precision, width, flags, ps); 1185 } else { 1186 /* Use all produced digits. */ 1187 precision = val_str.len - 1; 1188 return print_double_str_scient(&val_str, precision, width, flags, ps); 1189 } 1190 } 1191 } 1192 1193 1194 /** Convert, format and print a double according to the specifier. 1195 * 1196 * Depending on the specifier it prints the double using the styles 1197 * %g, %f or %e by means of print_double_generic(), print_double_fixed(), 1198 * print_double_scientific(). 1199 * 1200 * @param g Double to print. 1201 * @param spec Specifier of the style to print in; one of: 'g','G','f','F', 1202 * 'e','E'. 1203 * @param precision Number of fractional digits to display. If negative 1204 * the shortest accurate number will be printed for style %g; 1205 * negative precision defaults to 6 for styles %f, %e. 1206 * @param width Minimum number of characters to display. Pads 1207 * with '0' or ' ' depending on the set flags; 1208 * @param flags Printf flags. 1209 * @param ps Printing functions. 1210 * 1211 * @return The number of characters printed; negative on failure. 1212 */ 1213 static int print_double(double g, char spec, int precision, int width, 1214 uint32_t flags, printf_spec_t *ps) 1215 { 1216 switch (spec) { 1217 case 'F': 1218 flags |= __PRINTF_FLAG_BIGCHARS; 1219 /* Fall through.*/ 1220 case 'f': 1221 precision = (precision < 0) ? 6 : precision; 1222 return print_double_fixed(g, precision, width, flags, ps); 1223 1224 case 'E': 1225 flags |= __PRINTF_FLAG_BIGCHARS; 1226 /* Fall through.*/ 1227 case 'e': 1228 precision = (precision < 0) ? 6 : precision; 1229 return print_double_scientific(g, precision, width, flags, ps); 1230 1231 case 'G': 1232 flags |= __PRINTF_FLAG_BIGCHARS; 1233 /* Fall through.*/ 1234 case 'g': 1235 return print_double_generic(g, precision, width, flags, ps); 1236 1237 default: 1238 assert(false); 1239 return -1; 1240 } 527 1241 } 528 1242 … … 656 1370 case '#': 657 1371 flags |= __PRINTF_FLAG_PREFIX; 1372 flags |= __PRINTF_FLAG_DECIMALPT; 658 1373 break; 659 1374 case '-': … … 701 1416 702 1417 /* Precision and '*' operator */ 703 int precision = 0;1418 int precision = -1; 704 1419 if (uc == '.') { 705 1420 i = nxt; 706 1421 uc = str_decode(fmt, &nxt, STR_NO_LIMIT); 707 1422 if (isdigit(uc)) { 1423 precision = 0; 708 1424 while (true) { 709 1425 precision *= 10; … … 723 1439 precision = (int) va_arg(ap, int); 724 1440 if (precision < 0) { 725 /* Ignore negative precision */726 precision = 0;1441 /* Ignore negative precision - use default instead */ 1442 precision = -1; 727 1443 } 728 1444 } … … 774 1490 */ 775 1491 case 's': 1492 precision = max(0, precision); 1493 776 1494 if (qualifier == PrintfQualifierLong) 777 1495 retval = print_wstr(va_arg(ap, wchar_t *), width, precision, flags, ps); … … 797 1515 goto out; 798 1516 }; 1517 1518 counter += retval; 1519 j = nxt; 1520 goto next_char; 1521 1522 /* 1523 * Floating point values 1524 */ 1525 case 'G': 1526 case 'g': 1527 case 'F': 1528 case 'f': 1529 case 'E': 1530 case 'e': 1531 retval = print_double(va_arg(ap, double), uc, precision, 1532 width, flags, ps); 1533 1534 if (retval < 0) { 1535 counter = -counter; 1536 goto out; 1537 } 799 1538 800 1539 counter += retval; -
uspace/lib/c/generic/time.c
rfc89e32 r33c2952 1 1 /* 2 2 * Copyright (c) 2006 Ondrej Palkovsky 3 * Copyright (c) 2011 Petr Koupy 4 * Copyright (c) 2011 Jiri Zarevucky 3 5 * All rights reserved. 4 6 * … … 43 45 #include <ddi.h> 44 46 #include <libc.h> 47 #include <stdint.h> 48 #include <stdio.h> 49 #include <ctype.h> 50 #include <assert.h> 45 51 #include <unistd.h> 52 #include <loc.h> 53 #include <device/clock_dev.h> 54 #include <malloc.h> 55 56 #define ASCTIME_BUF_LEN 26 46 57 47 58 /** Pointer to kernel shared variables with time */ … … 52 63 } *ktime = NULL; 53 64 65 /* Helper functions ***********************************************************/ 66 67 #define HOURS_PER_DAY (24) 68 #define MINS_PER_HOUR (60) 69 #define SECS_PER_MIN (60) 70 #define MINS_PER_DAY (MINS_PER_HOUR * HOURS_PER_DAY) 71 #define SECS_PER_HOUR (SECS_PER_MIN * MINS_PER_HOUR) 72 #define SECS_PER_DAY (SECS_PER_HOUR * HOURS_PER_DAY) 73 74 /** 75 * Checks whether the year is a leap year. 76 * 77 * @param year Year since 1900 (e.g. for 1970, the value is 70). 78 * @return true if year is a leap year, false otherwise 79 */ 80 static bool _is_leap_year(time_t year) 81 { 82 year += 1900; 83 84 if (year % 400 == 0) 85 return true; 86 if (year % 100 == 0) 87 return false; 88 if (year % 4 == 0) 89 return true; 90 return false; 91 } 92 93 /** 94 * Returns how many days there are in the given month of the given year. 95 * Note that year is only taken into account if month is February. 96 * 97 * @param year Year since 1900 (can be negative). 98 * @param mon Month of the year. 0 for January, 11 for December. 99 * @return Number of days in the specified month. 100 */ 101 static int _days_in_month(time_t year, time_t mon) 102 { 103 assert(mon >= 0 && mon <= 11); 104 105 static int month_days[] = 106 { 31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; 107 108 if (mon == 1) { 109 year += 1900; 110 /* february */ 111 return _is_leap_year(year) ? 29 : 28; 112 } else { 113 return month_days[mon]; 114 } 115 } 116 117 /** 118 * For specified year, month and day of month, returns which day of that year 119 * it is. 120 * 121 * For example, given date 2011-01-03, the corresponding expression is: 122 * _day_of_year(111, 0, 3) == 2 123 * 124 * @param year Year (year 1900 = 0, can be negative). 125 * @param mon Month (January = 0). 126 * @param mday Day of month (First day is 1). 127 * @return Day of year (First day is 0). 128 */ 129 static int _day_of_year(time_t year, time_t mon, time_t mday) 130 { 131 static int mdays[] = 132 { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }; 133 static int leap_mdays[] = 134 { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 }; 135 136 return (_is_leap_year(year) ? leap_mdays[mon] : mdays[mon]) + mday - 1; 137 } 138 139 /** 140 * Integer division that rounds to negative infinity. 141 * Used by some functions in this file. 142 * 143 * @param op1 Dividend. 144 * @param op2 Divisor. 145 * @return Rounded quotient. 146 */ 147 static time_t _floor_div(time_t op1, time_t op2) 148 { 149 if (op1 >= 0 || op1 % op2 == 0) { 150 return op1 / op2; 151 } else { 152 return op1 / op2 - 1; 153 } 154 } 155 156 /** 157 * Modulo that rounds to negative infinity. 158 * Used by some functions in this file. 159 * 160 * @param op1 Dividend. 161 * @param op2 Divisor. 162 * @return Remainder. 163 */ 164 static time_t _floor_mod(time_t op1, time_t op2) 165 { 166 int div = _floor_div(op1, op2); 167 168 /* (a / b) * b + a % b == a */ 169 /* thus, a % b == a - (a / b) * b */ 170 171 int result = op1 - div * op2; 172 173 /* Some paranoid checking to ensure I didn't make a mistake here. */ 174 assert(result >= 0); 175 assert(result < op2); 176 assert(div * op2 + result == op1); 177 178 return result; 179 } 180 181 /** 182 * Number of days since the Epoch. 183 * Epoch is 1970-01-01, which is also equal to day 0. 184 * 185 * @param year Year (year 1900 = 0, may be negative). 186 * @param mon Month (January = 0). 187 * @param mday Day of month (first day = 1). 188 * @return Number of days since the Epoch. 189 */ 190 static time_t _days_since_epoch(time_t year, time_t mon, time_t mday) 191 { 192 return (year - 70) * 365 + _floor_div(year - 69, 4) - 193 _floor_div(year - 1, 100) + _floor_div(year + 299, 400) + 194 _day_of_year(year, mon, mday); 195 } 196 197 /** 198 * Seconds since the Epoch. see also _days_since_epoch(). 199 * 200 * @param tm Normalized broken-down time. 201 * @return Number of seconds since the epoch, not counting leap seconds. 202 */ 203 static time_t _secs_since_epoch(const struct tm *tm) 204 { 205 return _days_since_epoch(tm->tm_year, tm->tm_mon, tm->tm_mday) * 206 SECS_PER_DAY + tm->tm_hour * SECS_PER_HOUR + 207 tm->tm_min * SECS_PER_MIN + tm->tm_sec; 208 } 209 210 /** 211 * Which day of week the specified date is. 212 * 213 * @param year Year (year 1900 = 0). 214 * @param mon Month (January = 0). 215 * @param mday Day of month (first = 1). 216 * @return Day of week (Sunday = 0). 217 */ 218 static int _day_of_week(time_t year, time_t mon, time_t mday) 219 { 220 /* 1970-01-01 is Thursday */ 221 return _floor_mod((_days_since_epoch(year, mon, mday) + 4), 7); 222 } 223 224 /** 225 * Normalizes the broken-down time and optionally adds specified amount of 226 * seconds. 227 * 228 * @param tm Broken-down time to normalize. 229 * @param sec_add Seconds to add. 230 * @return 0 on success, -1 on overflow 231 */ 232 static int _normalize_time(struct tm *tm, time_t sec_add) 233 { 234 // TODO: DST correction 235 236 /* Set initial values. */ 237 time_t sec = tm->tm_sec + sec_add; 238 time_t min = tm->tm_min; 239 time_t hour = tm->tm_hour; 240 time_t day = tm->tm_mday - 1; 241 time_t mon = tm->tm_mon; 242 time_t year = tm->tm_year; 243 244 /* Adjust time. */ 245 min += _floor_div(sec, SECS_PER_MIN); 246 sec = _floor_mod(sec, SECS_PER_MIN); 247 hour += _floor_div(min, MINS_PER_HOUR); 248 min = _floor_mod(min, MINS_PER_HOUR); 249 day += _floor_div(hour, HOURS_PER_DAY); 250 hour = _floor_mod(hour, HOURS_PER_DAY); 251 252 /* Adjust month. */ 253 year += _floor_div(mon, 12); 254 mon = _floor_mod(mon, 12); 255 256 /* Now the difficult part - days of month. */ 257 258 /* First, deal with whole cycles of 400 years = 146097 days. */ 259 year += _floor_div(day, 146097) * 400; 260 day = _floor_mod(day, 146097); 261 262 /* Then, go in one year steps. */ 263 if (mon <= 1) { 264 /* January and February. */ 265 while (day > 365) { 266 day -= _is_leap_year(year) ? 366 : 365; 267 year++; 268 } 269 } else { 270 /* Rest of the year. */ 271 while (day > 365) { 272 day -= _is_leap_year(year + 1) ? 366 : 365; 273 year++; 274 } 275 } 276 277 /* Finally, finish it off month per month. */ 278 while (day >= _days_in_month(year, mon)) { 279 day -= _days_in_month(year, mon); 280 mon++; 281 if (mon >= 12) { 282 mon -= 12; 283 year++; 284 } 285 } 286 287 /* Calculate the remaining two fields. */ 288 tm->tm_yday = _day_of_year(year, mon, day + 1); 289 tm->tm_wday = _day_of_week(year, mon, day + 1); 290 291 /* And put the values back to the struct. */ 292 tm->tm_sec = (int) sec; 293 tm->tm_min = (int) min; 294 tm->tm_hour = (int) hour; 295 tm->tm_mday = (int) day + 1; 296 tm->tm_mon = (int) mon; 297 298 /* Casts to work around libc brain-damage. */ 299 if (year > ((int)INT_MAX) || year < ((int)INT_MIN)) { 300 tm->tm_year = (year < 0) ? ((int)INT_MIN) : ((int)INT_MAX); 301 return -1; 302 } 303 304 tm->tm_year = (int) year; 305 return 0; 306 } 307 308 /** 309 * Which day the week-based year starts on, relative to the first calendar day. 310 * E.g. if the year starts on December 31st, the return value is -1. 311 * 312 * @param Year since 1900. 313 * @return Offset of week-based year relative to calendar year. 314 */ 315 static int _wbyear_offset(int year) 316 { 317 int start_wday = _day_of_week(year, 0, 1); 318 return _floor_mod(4 - start_wday, 7) - 3; 319 } 320 321 /** 322 * Returns week-based year of the specified time. 323 * 324 * @param tm Normalized broken-down time. 325 * @return Week-based year. 326 */ 327 static int _wbyear(const struct tm *tm) 328 { 329 int day = tm->tm_yday - _wbyear_offset(tm->tm_year); 330 if (day < 0) { 331 /* Last week of previous year. */ 332 return tm->tm_year - 1; 333 } 334 if (day > 364 + _is_leap_year(tm->tm_year)) { 335 /* First week of next year. */ 336 return tm->tm_year + 1; 337 } 338 /* All the other days are in the calendar year. */ 339 return tm->tm_year; 340 } 341 342 /** 343 * Week number of the year, assuming weeks start on sunday. 344 * The first Sunday of January is the first day of week 1; 345 * days in the new year before this are in week 0. 346 * 347 * @param tm Normalized broken-down time. 348 * @return The week number (0 - 53). 349 */ 350 static int _sun_week_number(const struct tm *tm) 351 { 352 int first_day = (7 - _day_of_week(tm->tm_year, 0, 1)) % 7; 353 return (tm->tm_yday - first_day + 7) / 7; 354 } 355 356 /** 357 * Week number of the year, assuming weeks start on monday. 358 * If the week containing January 1st has four or more days in the new year, 359 * then it is considered week 1. Otherwise, it is the last week of the previous 360 * year, and the next week is week 1. Both January 4th and the first Thursday 361 * of January are always in week 1. 362 * 363 * @param tm Normalized broken-down time. 364 * @return The week number (1 - 53). 365 */ 366 static int _iso_week_number(const struct tm *tm) 367 { 368 int day = tm->tm_yday - _wbyear_offset(tm->tm_year); 369 if (day < 0) { 370 /* Last week of previous year. */ 371 return 53; 372 } 373 if (day > 364 + _is_leap_year(tm->tm_year)) { 374 /* First week of next year. */ 375 return 1; 376 } 377 /* All the other days give correct answer. */ 378 return (day / 7 + 1); 379 } 380 381 /** 382 * Week number of the year, assuming weeks start on monday. 383 * The first Monday of January is the first day of week 1; 384 * days in the new year before this are in week 0. 385 * 386 * @param tm Normalized broken-down time. 387 * @return The week number (0 - 53). 388 */ 389 static int _mon_week_number(const struct tm *tm) 390 { 391 int first_day = (1 - _day_of_week(tm->tm_year, 0, 1)) % 7; 392 return (tm->tm_yday - first_day + 7) / 7; 393 } 394 395 /******************************************************************************/ 396 397 54 398 /** Add microseconds to given timeval. 55 399 * … … 139 483 */ 140 484 int gettimeofday(struct timeval *tv, struct timezone *tz) 485 { 486 int rc; 487 struct tm t; 488 category_id_t cat_id; 489 size_t svc_cnt; 490 service_id_t *svc_ids = NULL; 491 service_id_t svc_id; 492 char *svc_name = NULL; 493 494 static async_sess_t *clock_conn = NULL; 495 496 if (tz) { 497 tz->tz_minuteswest = 0; 498 tz->tz_dsttime = DST_NONE; 499 } 500 501 if (clock_conn == NULL) { 502 rc = loc_category_get_id("clock", &cat_id, IPC_FLAG_BLOCKING); 503 if (rc != EOK) 504 goto ret_uptime; 505 506 rc = loc_category_get_svcs(cat_id, &svc_ids, &svc_cnt); 507 if (rc != EOK) 508 goto ret_uptime; 509 510 if (svc_cnt == 0) 511 goto ret_uptime; 512 513 rc = loc_service_get_name(svc_ids[0], &svc_name); 514 if (rc != EOK) 515 goto ret_uptime; 516 517 rc = loc_service_get_id(svc_name, &svc_id, 0); 518 if (rc != EOK) 519 goto ret_uptime; 520 521 clock_conn = loc_service_connect(EXCHANGE_SERIALIZE, 522 svc_id, IPC_FLAG_BLOCKING); 523 if (!clock_conn) 524 goto ret_uptime; 525 } 526 527 rc = clock_dev_time_get(clock_conn, &t); 528 if (rc != EOK) 529 goto ret_uptime; 530 531 tv->tv_usec = 0; 532 tv->tv_sec = mktime(&t); 533 534 free(svc_name); 535 free(svc_ids); 536 537 return EOK; 538 539 ret_uptime: 540 541 free(svc_name); 542 free(svc_ids); 543 544 return getuptime(tv); 545 } 546 547 int getuptime(struct timeval *tv) 141 548 { 142 549 if (ktime == NULL) { … … 160 567 } 161 568 162 if (tz) {163 tz->tz_minuteswest = 0;164 tz->tz_dsttime = DST_NONE;165 }166 167 569 sysarg_t s2 = ktime->seconds2; 168 570 … … 178 580 } else 179 581 tv->tv_sec = s1; 180 582 181 583 return 0; 182 584 } … … 229 631 } 230 632 633 /** 634 * This function first normalizes the provided broken-down time 635 * (moves all values to their proper bounds) and then tries to 636 * calculate the appropriate time_t representation. 637 * 638 * @param tm Broken-down time. 639 * @return time_t representation of the time, undefined value on overflow. 640 */ 641 time_t mktime(struct tm *tm) 642 { 643 // TODO: take DST flag into account 644 // TODO: detect overflow 645 646 _normalize_time(tm, 0); 647 return _secs_since_epoch(tm); 648 } 649 650 /** 651 * Convert time and date to a string, based on a specified format and 652 * current locale. 653 * 654 * @param s Buffer to write string to. 655 * @param maxsize Size of the buffer. 656 * @param format Format of the output. 657 * @param tm Broken-down time to format. 658 * @return Number of bytes written. 659 */ 660 size_t strftime(char *restrict s, size_t maxsize, 661 const char *restrict format, const struct tm *restrict tm) 662 { 663 assert(s != NULL); 664 assert(format != NULL); 665 assert(tm != NULL); 666 667 // TODO: use locale 668 static const char *wday_abbr[] = { 669 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" 670 }; 671 static const char *wday[] = { 672 "Sunday", "Monday", "Tuesday", "Wednesday", 673 "Thursday", "Friday", "Saturday" 674 }; 675 static const char *mon_abbr[] = { 676 "Jan", "Feb", "Mar", "Apr", "May", "Jun", 677 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" 678 }; 679 static const char *mon[] = { 680 "January", "February", "March", "April", "May", "June", "July", 681 "August", "September", "October", "November", "December" 682 }; 683 684 if (maxsize < 1) { 685 return 0; 686 } 687 688 char *ptr = s; 689 size_t consumed; 690 size_t remaining = maxsize; 691 692 #define append(...) { \ 693 /* FIXME: this requires POSIX-correct snprintf */ \ 694 /* otherwise it won't work with non-ascii chars */ \ 695 consumed = snprintf(ptr, remaining, __VA_ARGS__); \ 696 if (consumed >= remaining) { \ 697 return 0; \ 698 } \ 699 ptr += consumed; \ 700 remaining -= consumed; \ 701 } 702 703 #define recurse(fmt) { \ 704 consumed = strftime(ptr, remaining, fmt, tm); \ 705 if (consumed == 0) { \ 706 return 0; \ 707 } \ 708 ptr += consumed; \ 709 remaining -= consumed; \ 710 } 711 712 #define TO_12H(hour) (((hour) > 12) ? ((hour) - 12) : \ 713 (((hour) == 0) ? 12 : (hour))) 714 715 while (*format != '\0') { 716 if (*format != '%') { 717 append("%c", *format); 718 format++; 719 continue; 720 } 721 722 format++; 723 if (*format == '0' || *format == '+') { 724 // TODO: padding 725 format++; 726 } 727 while (isdigit(*format)) { 728 // TODO: padding 729 format++; 730 } 731 if (*format == 'O' || *format == 'E') { 732 // TODO: locale's alternative format 733 format++; 734 } 735 736 switch (*format) { 737 case 'a': 738 append("%s", wday_abbr[tm->tm_wday]); break; 739 case 'A': 740 append("%s", wday[tm->tm_wday]); break; 741 case 'b': 742 append("%s", mon_abbr[tm->tm_mon]); break; 743 case 'B': 744 append("%s", mon[tm->tm_mon]); break; 745 case 'c': 746 // TODO: locale-specific datetime format 747 recurse("%Y-%m-%d %H:%M:%S"); break; 748 case 'C': 749 append("%02d", (1900 + tm->tm_year) / 100); break; 750 case 'd': 751 append("%02d", tm->tm_mday); break; 752 case 'D': 753 recurse("%m/%d/%y"); break; 754 case 'e': 755 append("%2d", tm->tm_mday); break; 756 case 'F': 757 recurse("%+4Y-%m-%d"); break; 758 case 'g': 759 append("%02d", _wbyear(tm) % 100); break; 760 case 'G': 761 append("%d", _wbyear(tm)); break; 762 case 'h': 763 recurse("%b"); break; 764 case 'H': 765 append("%02d", tm->tm_hour); break; 766 case 'I': 767 append("%02d", TO_12H(tm->tm_hour)); break; 768 case 'j': 769 append("%03d", tm->tm_yday); break; 770 case 'k': 771 append("%2d", tm->tm_hour); break; 772 case 'l': 773 append("%2d", TO_12H(tm->tm_hour)); break; 774 case 'm': 775 append("%02d", tm->tm_mon); break; 776 case 'M': 777 append("%02d", tm->tm_min); break; 778 case 'n': 779 append("\n"); break; 780 case 'p': 781 append("%s", tm->tm_hour < 12 ? "AM" : "PM"); break; 782 case 'P': 783 append("%s", tm->tm_hour < 12 ? "am" : "PM"); break; 784 case 'r': 785 recurse("%I:%M:%S %p"); break; 786 case 'R': 787 recurse("%H:%M"); break; 788 case 's': 789 append("%ld", _secs_since_epoch(tm)); break; 790 case 'S': 791 append("%02d", tm->tm_sec); break; 792 case 't': 793 append("\t"); break; 794 case 'T': 795 recurse("%H:%M:%S"); break; 796 case 'u': 797 append("%d", (tm->tm_wday == 0) ? 7 : tm->tm_wday); 798 break; 799 case 'U': 800 append("%02d", _sun_week_number(tm)); break; 801 case 'V': 802 append("%02d", _iso_week_number(tm)); break; 803 case 'w': 804 append("%d", tm->tm_wday); break; 805 case 'W': 806 append("%02d", _mon_week_number(tm)); break; 807 case 'x': 808 // TODO: locale-specific date format 809 recurse("%Y-%m-%d"); break; 810 case 'X': 811 // TODO: locale-specific time format 812 recurse("%H:%M:%S"); break; 813 case 'y': 814 append("%02d", tm->tm_year % 100); break; 815 case 'Y': 816 append("%d", 1900 + tm->tm_year); break; 817 case 'z': 818 // TODO: timezone 819 break; 820 case 'Z': 821 // TODO: timezone 822 break; 823 case '%': 824 append("%%"); 825 break; 826 default: 827 /* Invalid specifier, print verbatim. */ 828 while (*format != '%') { 829 format--; 830 } 831 append("%%"); 832 break; 833 } 834 format++; 835 } 836 837 #undef append 838 #undef recurse 839 840 return maxsize - remaining; 841 } 842 843 844 /** Converts a time value to a broken-down UTC time 845 * 846 * @param time Time to convert 847 * @param result Structure to store the result to 848 * 849 * @return EOK or a negative error code 850 */ 851 int time_utc2tm(const time_t time, struct tm *restrict result) 852 { 853 assert(result != NULL); 854 855 /* Set result to epoch. */ 856 result->tm_sec = 0; 857 result->tm_min = 0; 858 result->tm_hour = 0; 859 result->tm_mday = 1; 860 result->tm_mon = 0; 861 result->tm_year = 70; /* 1970 */ 862 863 if (_normalize_time(result, time) == -1) 864 return EOVERFLOW; 865 866 return EOK; 867 } 868 869 /** Converts a time value to a null terminated string of the form 870 * "Wed Jun 30 21:49:08 1993\n" expressed in UTC. 871 * 872 * @param time Time to convert. 873 * @param buf Buffer to store the string to, must be at least 874 * ASCTIME_BUF_LEN bytes long. 875 * 876 * @return EOK or a negative error code. 877 */ 878 int time_utc2str(const time_t time, char *restrict buf) 879 { 880 struct tm t; 881 int r; 882 883 if ((r = time_utc2tm(time, &t)) != EOK) 884 return r; 885 886 time_tm2str(&t, buf); 887 return EOK; 888 } 889 890 891 /** 892 * Converts broken-down time to a string in format 893 * "Sun Jan 1 00:00:00 1970\n". (Obsolete) 894 * 895 * @param timeptr Broken-down time structure. 896 * @param buf Buffer to store string to, must be at least ASCTIME_BUF_LEN 897 * bytes long. 898 */ 899 void time_tm2str(const struct tm *restrict timeptr, char *restrict buf) 900 { 901 assert(timeptr != NULL); 902 assert(buf != NULL); 903 904 static const char *wday[] = { 905 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" 906 }; 907 static const char *mon[] = { 908 "Jan", "Feb", "Mar", "Apr", "May", "Jun", 909 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" 910 }; 911 912 snprintf(buf, ASCTIME_BUF_LEN, "%s %s %2d %02d:%02d:%02d %d\n", 913 wday[timeptr->tm_wday], 914 mon[timeptr->tm_mon], 915 timeptr->tm_mday, timeptr->tm_hour, 916 timeptr->tm_min, timeptr->tm_sec, 917 1900 + timeptr->tm_year); 918 } 919 920 /** 921 * Converts a time value to a broken-down local time, expressed relative 922 * to the user's specified timezone. 923 * 924 * @param timer Time to convert. 925 * @param result Structure to store the result to. 926 * 927 * @return EOK on success or a negative error code. 928 */ 929 int time_local2tm(const time_t time, struct tm *restrict result) 930 { 931 // TODO: deal with timezone 932 // currently assumes system and all times are in GMT 933 934 /* Set result to epoch. */ 935 result->tm_sec = 0; 936 result->tm_min = 0; 937 result->tm_hour = 0; 938 result->tm_mday = 1; 939 result->tm_mon = 0; 940 result->tm_year = 70; /* 1970 */ 941 942 if (_normalize_time(result, time) == -1) 943 return EOVERFLOW; 944 945 return EOK; 946 } 947 948 /** 949 * Converts the calendar time to a null terminated string 950 * of the form "Wed Jun 30 21:49:08 1993\n" expressed relative to the 951 * user's specified timezone. 952 * 953 * @param timer Time to convert. 954 * @param buf Buffer to store the string to. Must be at least 955 * ASCTIME_BUF_LEN bytes long. 956 * 957 * @return EOK on success or a negative error code. 958 */ 959 int time_local2str(const time_t time, char *buf) 960 { 961 struct tm loctime; 962 int r; 963 964 if ((r = time_local2tm(time, &loctime)) != EOK) 965 return r; 966 967 time_tm2str(&loctime, buf); 968 969 return EOK; 970 } 971 972 /** 973 * Calculate the difference between two times, in seconds. 974 * 975 * @param time1 First time. 976 * @param time0 Second time. 977 * @return Time in seconds. 978 */ 979 double difftime(time_t time1, time_t time0) 980 { 981 return (double) (time1 - time0); 982 } 983 231 984 /** @} 232 985 */ -
uspace/lib/c/generic/tls.c
rfc89e32 r33c2952 42 42 #include <str.h> 43 43 #include <align.h> 44 #include <unistd.h> 44 45 45 46 /** Create TLS (Thread Local Storage) data structures. … … 57 58 58 59 tcb = __alloc_tls(&data, tls_size); 60 if (!tcb) 61 return NULL; 59 62 60 63 /* … … 89 92 90 93 result = malloc(sizeof(tcb_t) + size); 94 if (!result) 95 return NULL; 91 96 *data = ((void *)result) + sizeof(tcb_t); 97 92 98 return result; 93 99 } … … 118 124 size = ALIGN_UP(size, &_tls_alignment); 119 125 *data = memalign((uintptr_t) &_tls_alignment, sizeof(tcb_t) + size); 120 126 if (!*data) 127 return NULL; 121 128 tcb = (tcb_t *) (*data + size); 122 129 tcb->self = tcb; -
uspace/lib/c/include/io/console.h
rfc89e32 r33c2952 37 37 38 38 #include <sys/time.h> 39 #include <io/concaps.h> 39 40 #include <io/kbd_event.h> 40 41 #include <io/keycode.h> … … 42 43 #include <bool.h> 43 44 #include <stdio.h> 44 45 typedef enum {46 CONSOLE_CAP_NONE = 0,47 CONSOLE_CAP_STYLE = 1,48 CONSOLE_CAP_INDEXED = 2,49 CONSOLE_CAP_RGB = 450 } console_caps_t;51 45 52 46 /** Console control structure. */ -
uspace/lib/c/include/io/klog.h
rfc89e32 r33c2952 38 38 #include <sys/types.h> 39 39 #include <stdarg.h> 40 #include <io/verify.h> 40 41 41 42 extern size_t klog_write(const void *, size_t); 42 43 extern void klog_update(void); 43 extern int klog_printf(const char *, ...); 44 extern int klog_printf(const char *, ...) 45 PRINTF_ATTRIBUTE(1, 2); 44 46 extern int klog_vprintf(const char *, va_list); 45 47 -
uspace/lib/c/include/io/log.h
rfc89e32 r33c2952 36 36 37 37 #include <stdarg.h> 38 #include <inttypes.h> 39 #include <io/verify.h> 38 40 41 /** Log message level. */ 39 42 typedef enum { 43 /** Fatal error, program is not able to recover at all. */ 40 44 LVL_FATAL, 45 /** Serious error but the program can recover from it. */ 41 46 LVL_ERROR, 47 /** Easily recoverable problem. */ 42 48 LVL_WARN, 49 /** Information message that ought to be printed by default. */ 43 50 LVL_NOTE, 51 /** Debugging purpose message. */ 44 52 LVL_DEBUG, 53 /** More detailed debugging message. */ 45 54 LVL_DEBUG2, 46 55 47 56 /** For checking range of values */ 48 57 LVL_LIMIT 49 58 } log_level_t; 50 59 51 extern int log_init(const char *, log_level_t); 52 extern void log_msg(log_level_t, const char *, ...); 53 extern void log_msgv(log_level_t, const char *, va_list); 60 /** Log itself (logging target). */ 61 typedef sysarg_t log_t; 62 /** Formatting directive for printing log_t. */ 63 #define PRIlogctx PRIxn 64 65 /** Default log (target). */ 66 #define LOG_DEFAULT ((log_t) -1) 67 68 /** Use when creating new top-level log. */ 69 #define LOG_NO_PARENT ((log_t) 0) 70 71 extern const char *log_level_str(log_level_t); 72 extern int log_level_from_str(const char *, log_level_t *); 73 74 extern int log_init(const char *); 75 extern log_t log_create(const char *, log_t); 76 77 extern void log_msg(log_t, log_level_t, const char *, ...) 78 PRINTF_ATTRIBUTE(3, 4); 79 extern void log_msgv(log_t, log_level_t, const char *, va_list); 54 80 55 81 #endif -
uspace/lib/c/include/ipc/console.h
rfc89e32 r33c2952 43 43 CONSOLE_GET_EVENT, 44 44 CONSOLE_GET_POS, 45 CONSOLE_ GOTO,45 CONSOLE_SET_POS, 46 46 CONSOLE_CLEAR, 47 47 CONSOLE_SET_STYLE, 48 48 CONSOLE_SET_COLOR, 49 49 CONSOLE_SET_RGB_COLOR, 50 CONSOLE_ CURSOR_VISIBILITY50 CONSOLE_SET_CURSOR_VISIBILITY 51 51 } console_request_t; 52 52 -
uspace/lib/c/include/ipc/dev_iface.h
rfc89e32 r33c2952 54 54 /** Interface provided by USB HID devices. */ 55 55 USBHID_DEV_IFACE, 56 /** Interface provided by Real Time Clock devices */ 57 CLOCK_DEV_IFACE, 58 /** Interface provided by battery powered devices */ 59 BATTERY_DEV_IFACE, 56 60 /** Interface provided by AHCI devices. */ 57 61 AHCI_DEV_IFACE, -
uspace/lib/c/include/ipc/services.h
rfc89e32 r33c2952 45 45 SERVICE_VFS = FOURCC('v', 'f', 's', ' '), 46 46 SERVICE_LOC = FOURCC('l', 'o', 'c', ' '), 47 SERVICE_LOGGER = FOURCC('l', 'o', 'g', 'g'), 47 48 SERVICE_DEVMAN = FOURCC('d', 'e', 'v', 'n'), 48 49 SERVICE_IRC = FOURCC('i', 'r', 'c', ' '), -
uspace/lib/c/include/macros.h
rfc89e32 r33c2952 38 38 #define min(a, b) ((a) < (b) ? (a) : (b)) 39 39 #define max(a, b) ((a) > (b) ? (a) : (b)) 40 #define abs(a) ((a) >= 0 ? (a) : (-a)) 41 40 42 41 43 #define KiB2SIZE(kb) ((kb) << 10) -
uspace/lib/c/include/stdio.h
rfc89e32 r33c2952 39 39 #include <stdarg.h> 40 40 #include <str.h> 41 42 #ifndef NVERIFY_PRINTF 43 44 #define PRINTF_ATTRIBUTE(start, end) \ 45 __attribute__((format(gnu_printf, start, end))) 46 47 #else /* NVERIFY_PRINTF */ 48 49 #define PRINTF_ATTRIBUTE(start, end) 50 51 #endif /* NVERIFY_PRINTF */ 41 #include <io/verify.h> 52 42 53 43 #define EOF (-1) -
uspace/lib/c/include/sys/time.h
rfc89e32 r33c2952 1 1 /* 2 2 * Copyright (c) 2006 Ondrej Palkovsky 3 * Copyright (c) 2011 Petr Koupy 4 * Copyright (c) 2011 Jiri Zarevucky 3 5 * All rights reserved. 4 6 * … … 39 41 40 42 #define DST_NONE 0 43 #define ASCTIME_BUF_LEN 26 41 44 42 45 typedef long time_t; … … 45 48 typedef uint32_t useconds_t; 46 49 typedef uint32_t mseconds_t; 50 51 struct tm { 52 int tm_sec; /* Seconds [0,60]. */ 53 int tm_min; /* Minutes [0,59]. */ 54 int tm_hour; /* Hour [0,23]. */ 55 int tm_mday; /* Day of month [1,31]. */ 56 int tm_mon; /* Month of year [0,11]. */ 57 int tm_year; /* Years since 1900. */ 58 int tm_wday; /* Day of week [0,6] (Sunday = 0). */ 59 int tm_yday; /* Day of year [0,365]. */ 60 int tm_isdst; /* Daylight Savings flag. */ 61 }; 47 62 48 63 struct timeval { … … 61 76 extern int tv_gteq(struct timeval *tv1, struct timeval *tv2); 62 77 extern int gettimeofday(struct timeval *tv, struct timezone *tz); 78 extern int getuptime(struct timeval *tv); 63 79 64 80 extern void udelay(useconds_t); 81 82 extern time_t mktime(struct tm *tm); 83 extern int time_utc2tm(const time_t time, struct tm *result); 84 extern int time_utc2str(const time_t time, char *buf); 85 extern void time_tm2str(const struct tm *timeptr, char *buf); 86 extern int time_local2tm(const time_t time, struct tm *result); 87 extern int time_local2str(const time_t time, char *buf); 88 extern double difftime(time_t time1, time_t time0); 89 extern size_t strftime(char *restrict s, size_t maxsize, 90 const char *restrict format, const struct tm *restrict tm); 65 91 66 92 #endif
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