Changeset bbdbf86 in mainline for uspace/srv/loader/main.c

Timestamp:

2009-06-03T18:46:29Z (15 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

215abc1

Parents:

bf1fb9f

Message:

add support for passing preset files
rename loader_ prefix to ldr_ prefix (to avoid confusion with libc functions)

File:

• uspace/srv/loader/main.c (modified) (14 diffs)

uspace/srv/loader/main.c

@@ -54 +54 @@
 #include <ipc/loader.h>
 #include <loader/pcb.h>
-#include <console.h>
 #include <errno.h>
 #include <async.h>
+#include <string.h>
 #include <as.h>
 
@@ -77 +77 @@
 static char *arg_buf = NULL;
 
+/** Number of preset files */
+static int filc = 0;
+/** Preset files vector */
+static char **filv = NULL;
+/** Buffer holding all preset files */
+static fs_node_t *fil_buf = NULL;
+
 static elf_info_t prog_info;
 static elf_info_t interp_info;
@@ -85 +92 @@
 static bool connected;
 
-static void loader_get_taskid(ipc_callid_t rid, ipc_call_t *request)
+static void ldr_get_taskid(ipc_callid_t rid, ipc_call_t *request)
 {
         ipc_callid_t callid;
@@ -112 +119 @@
  * @param request
  */
-static void loader_set_pathname(ipc_callid_t rid, ipc_call_t *request)
+static void ldr_set_pathname(ipc_callid_t rid, ipc_call_t *request)
 {
         ipc_callid_t callid;
@@ -148 +155 @@
  * @param request
  */
-static void loader_set_args(ipc_callid_t rid, ipc_call_t *request)
+static void ldr_set_args(ipc_callid_t rid, ipc_call_t *request)
 {
         ipc_callid_t callid;
@@ -221 +228 @@
 }
 
+/** Receive a call setting preset files of the program to execute.
+ *
+ * @param rid
+ * @param request
+ */
+static void ldr_set_files(ipc_callid_t rid, ipc_call_t *request)
+{
+        ipc_callid_t callid;
+        size_t buf_size;
+        if (!ipc_data_write_receive(&callid, &buf_size)) {
+                ipc_answer_0(callid, EINVAL);
+                ipc_answer_0(rid, EINVAL);
+                return;
+        }
+        
+        if ((buf_size % sizeof(fs_node_t)) != 0) {
+                ipc_answer_0(callid, EINVAL);
+                ipc_answer_0(rid, EINVAL);
+                return;
+        }
+        
+        if (fil_buf != NULL) {
+                free(fil_buf);
+                fil_buf = NULL;
+        }
+        
+        if (filv != NULL) {
+                free(filv);
+                filv = NULL;
+        }
+        
+        fil_buf = malloc(buf_size);
+        if (!fil_buf) {
+                ipc_answer_0(callid, ENOMEM);
+                ipc_answer_0(rid, ENOMEM);
+                return;
+        }
+        
+        ipc_data_write_finalize(callid, fil_buf, buf_size);
+        
+        int count = buf_size / sizeof(fs_node_t);
+        
+        /* Allocate filvv */
+        filv = malloc((count + 1) * sizeof(fs_node_t *));
+        
+        if (filv == NULL) {
+                free(fil_buf);
+                ipc_answer_0(rid, ENOMEM);
+                return;
+        }
+        
+        /*
+         * Fill filv with argument pointers
+         */
+        int i;
+        for (i = 0; i < count; i++)
+                filv[i] = &fil_buf[i];
+        
+        filc = count;
+        filv[count] = NULL;
+        
+        ipc_answer_0(rid, EOK);
+}
+
 /** Load the previously selected program.
  *
@@ -227 +298 @@
  * @return 0 on success, !0 on error.
  */
-static int loader_load(ipc_callid_t rid, ipc_call_t *request)
+static int ldr_load(ipc_callid_t rid, ipc_call_t *request)
 {
         int rc;
@@ -242 +313 @@
         pcb.argc = argc;
         pcb.argv = argv;
+        
+        pcb.filc = filc;
+        pcb.filv = filv;
         
         if (prog_info.interp == NULL) {
@@ -271 +345 @@
  * @return 0 on success, !0 on error.
  */
-static void loader_run(ipc_callid_t rid, ipc_call_t *request)
+static void ldr_run(ipc_callid_t rid, ipc_call_t *request)
 {
         const char *cp;
@@ -284 +358 @@
                 DPRINTF("Run ELF interpreter.\n");
                 DPRINTF("Entry point: 0x%lx\n", interp_info.entry);
-                console_close();
                 
                 ipc_answer_0(rid, EOK);
@@ -290 +363 @@
         } else {
                 /* Statically linked program */
-                console_close();
                 ipc_answer_0(rid, EOK);
                 elf_run(&prog_info, &pcb);
-        } 
-
+        }
+        
         /* Not reached */
 }
@@ -303 +375 @@
  * to execute the loaded program).
  */
-static void loader_connection(ipc_callid_t iid, ipc_call_t *icall)
+static void ldr_connection(ipc_callid_t iid, ipc_call_t *icall)
 {
         ipc_callid_t callid;
@@ -331 +403 @@
                         exit(0);
                 case LOADER_GET_TASKID:
-                        loader_get_taskid(callid, &call);
+                        ldr_get_taskid(callid, &call);
                         continue;
                 case LOADER_SET_PATHNAME:
-                        loader_set_pathname(callid, &call);
+                        ldr_set_pathname(callid, &call);
                         continue;
                 case LOADER_SET_ARGS:
-                        loader_set_args(callid, &call);
+                        ldr_set_args(callid, &call);
+                        continue;
+                case LOADER_SET_FILES:
+                        ldr_set_files(callid, &call);
                         continue;
                 case LOADER_LOAD:
-                        loader_load(callid, &call);
+                        ldr_load(callid, &call);
                         continue;
                 case LOADER_RUN:
-                        loader_run(callid, &call);
+                        ldr_run(callid, &call);
                         /* Not reached */
                 default:
@@ -367 +442 @@
         
         /* Set a handler of incomming connections. */
-        async_set_client_connection(loader_connection);
+        async_set_client_connection(ldr_connection);
         
         /* Register at naming service. */