Changeset fbcfc4da in mainline for uspace/lib/libc/generic/time.c
- Timestamp:
- 2009-12-03T19:25:17Z (15 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 9510be2
- Parents:
- cb3d641a (diff), 22e6802 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
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- 1 edited
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uspace/lib/libc/generic/time.c
rcb3d641a rfbcfc4da 31 31 */ 32 32 /** @file 33 */ 33 */ 34 34 35 35 #include <sys/time.h> … … 40 40 #include <unistd.h> 41 41 #include <atomic.h> 42 #include <futex.h>43 42 #include <sysinfo.h> 44 43 #include <ipc/services.h> 44 #include <libc.h> 45 45 46 46 #include <sysinfo.h> … … 189 189 190 190 /** Wait unconditionally for specified number of microseconds */ 191 int usleep(unsigned long usec) 192 { 193 atomic_t futex = FUTEX_INITIALIZER; 194 195 futex_initialize(&futex, 0); 196 futex_down_timeout(&futex, usec, 0); 191 int usleep(useconds_t usec) 192 { 193 (void) __SYSCALL1(SYS_THREAD_USLEEP, usec); 197 194 return 0; 198 195 } 199 196 200 197 /** Wait unconditionally for specified number of seconds */ 201 unsigned int sleep(unsigned int seconds) 202 { 203 atomic_t futex = FUTEX_INITIALIZER; 204 205 futex_initialize(&futex, 0); 206 198 unsigned int sleep(unsigned int sec) 199 { 207 200 /* Sleep in 1000 second steps to support 208 201 full argument range */ 209 while (sec onds> 0) {210 unsigned int period = (sec onds > 1000) ? 1000 : seconds;202 while (sec > 0) { 203 unsigned int period = (sec > 1000) ? 1000 : sec; 211 204 212 futex_down_timeout(&futex, period * 1000000,0);213 sec onds-= period;205 usleep(period * 1000000); 206 sec -= period; 214 207 } 215 208 return 0;
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