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001 /* Copyright (C) 2005 David Decotigny 001 /* Copyright (C) 2005 David Decotigny 002 002 003 This program is free software; you can redi 003 This program is free software; you can redistribute it and/or 004 modify it under the terms of the GNU Genera 004 modify it under the terms of the GNU General Public License 005 as published by the Free Software Foundatio 005 as published by the Free Software Foundation; either version 2 006 of the License, or (at your option) any lat 006 of the License, or (at your option) any later version. 007 007 008 This program is distributed in the hope tha 008 This program is distributed in the hope that it will be useful, 009 but WITHOUT ANY WARRANTY; without even the 009 but WITHOUT ANY WARRANTY; without even the implied warranty of 010 MERCHANTABILITY or FITNESS FOR A PARTICULAR 010 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 011 GNU General Public License for more details 011 GNU General Public License for more details. 012 012 013 You should have received a copy of the GNU 013 You should have received a copy of the GNU General Public License 014 along with this program; if not, write to t 014 along with this program; if not, write to the Free Software 015 Foundation, Inc., 59 Temple Place - Suite 3 015 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 016 USA. 016 USA. 017 */ 017 */ 018 018 019 #include <sos/assert.h> 019 #include <sos/assert.h> 020 #include <sos/list.h> 020 #include <sos/list.h> 021 #include <sos/kmem_slab.h> 021 #include <sos/kmem_slab.h> 022 #include <hwcore/irq.h> 022 #include <hwcore/irq.h> 023 #include <drivers/bochs.h> 023 #include <drivers/bochs.h> 024 024 025 #include <sos/umem_vmm.h> 025 #include <sos/umem_vmm.h> 026 026 027 #include "process.h" 027 #include "process.h" 028 028 029 #define SOS_PROCESS_MAX_OPENED_FILES 64 029 #define SOS_PROCESS_MAX_OPENED_FILES 64 030 #define SOS_PROCESS_MAX_NAMELEN 32 030 #define SOS_PROCESS_MAX_NAMELEN 32 031 031 032 032 033 /** 033 /** 034 * Definition of a process in SOS. A process i 034 * Definition of a process in SOS. A process is basically the 035 * collection of all the resources requested b 035 * collection of all the resources requested by a user program. The 036 * threads are one of these resources, the mm_ 036 * threads are one of these resources, the mm_context is one other 037 * example of such resources. 037 * example of such resources. 038 */ 038 */ 039 struct sos_process 039 struct sos_process 040 { 040 { 041 char name[SOS_PROCESS_MAX_NAMELEN]; 041 char name[SOS_PROCESS_MAX_NAMELEN]; 042 042 043 /** First important resource: the address sp 043 /** First important resource: the address space */ 044 struct sos_umem_vmm_as *address_space; 044 struct sos_umem_vmm_as *address_space; 045 045 046 /** Second important resource: the CPU execu 046 /** Second important resource: the CPU execution contexts, aka the 047 threads executing in the context of this 047 threads executing in the context of this process. */ 048 struct sos_thread *thread_list; 048 struct sos_thread *thread_list; 049 sos_count_t nb_threads; 049 sos_count_t nb_threads; 050 050 051 /** Reference counter, including threads */ 051 /** Reference counter, including threads */ 052 sos_count_t ref_cnt; 052 sos_count_t ref_cnt; 053 053 054 /** The array of opened file descriptors */ 054 /** The array of opened file descriptors */ 055 struct sos_fs_opened_file * fds[SOS_PROCESS_ 055 struct sos_fs_opened_file * fds[SOS_PROCESS_MAX_OPENED_FILES]; 056 056 057 /** Where the root of the process is (for ch 057 /** Where the root of the process is (for chroot support). May be NULL */ 058 struct sos_fs_opened_file * root; 058 struct sos_fs_opened_file * root; 059 059 060 /** Where the current working dir of the pro 060 /** Where the current working dir of the process is */ 061 struct sos_fs_opened_file * cwd; 061 struct sos_fs_opened_file * cwd; 062 062 063 struct sos_process *prev, *next; 063 struct sos_process *prev, *next; 064 }; 064 }; 065 065 066 066 067 /** The list of processes in the system */ 067 /** The list of processes in the system */ 068 static struct sos_process *process_list = NULL 068 static struct sos_process *process_list = NULL; 069 069 070 070 071 /** The cache for the sos_process structures * 071 /** The cache for the sos_process structures */ 072 struct sos_kslab_cache *cache_struct_process; 072 struct sos_kslab_cache *cache_struct_process; 073 073 074 074 075 /** 075 /** 076 * Helper function for debugging purposes 076 * Helper function for debugging purposes 077 */ 077 */ 078 void sos_process_dumplist(void) !! 078 void sos_process_dumplist() 079 { 079 { 080 struct sos_thread * cur_thr = sos_thread_get 080 struct sos_thread * cur_thr = sos_thread_get_current(); 081 struct sos_process * proc; 081 struct sos_process * proc; 082 int nb_procs; 082 int nb_procs; 083 083 084 sos_bochs_printf("<ps>\n"); 084 sos_bochs_printf("<ps>\n"); 085 list_foreach(process_list, proc, nb_procs) 085 list_foreach(process_list, proc, nb_procs) 086 { 086 { 087 struct sos_thread * thr; 087 struct sos_thread * thr; 088 int nb_thrs; 088 int nb_thrs; 089 089 090 sos_bochs_printf(" proc@%p: '%s', %d th 090 sos_bochs_printf(" proc@%p: '%s', %d threads, %d refs\n", 091 proc, proc->name?proc-> 091 proc, proc->name?proc->name:"(none)", 092 proc->nb_threads, proc- 092 proc->nb_threads, proc->ref_cnt); 093 093 094 list_foreach_forward_named(proc->thread_ 094 list_foreach_forward_named(proc->thread_list, thr, nb_thrs, 095 prev_in_proce 095 prev_in_process, next_in_process) 096 { 096 { 097 if (thr == cur_thr) 097 if (thr == cur_thr) 098 sos_bochs_printf(" thr@%p: [CUR 098 sos_bochs_printf(" thr@%p: [CURRENT]\n", thr); 099 else 099 else 100 sos_bochs_printf(" thr@%p: %cst 100 sos_bochs_printf(" thr@%p: %cstate=%d eip=%p\n", 101 thr, 101 thr, 102 sos_cpu_context_i 102 sos_cpu_context_is_in_user_mode(thr->cpu_state)?'u':'k', 103 thr->state, 103 thr->state, 104 (void*)sos_cpu_co 104 (void*)sos_cpu_context_get_PC(thr->cpu_state)); 105 } 105 } 106 } 106 } 107 sos_bochs_printf(" ======= %d processes === 107 sos_bochs_printf(" ======= %d processes =======\n", nb_procs); 108 sos_bochs_printf("</ps>\n"); 108 sos_bochs_printf("</ps>\n"); 109 } 109 } 110 110 111 111 112 sos_ret_t sos_process_subsystem_setup() 112 sos_ret_t sos_process_subsystem_setup() 113 { 113 { 114 /* Create the cache for the process structur 114 /* Create the cache for the process structures */ 115 cache_struct_process = sos_kmem_cache_create 115 cache_struct_process = sos_kmem_cache_create("struct_process", 116 116 sizeof(struct sos_process), 117 117 3, 118 118 0, 119 119 SOS_KSLAB_CREATE_MAP 120 120 | SOS_KSLAB_CREATE_ZERO); 121 if (! cache_struct_process) 121 if (! cache_struct_process) 122 return -SOS_ENOMEM; 122 return -SOS_ENOMEM; 123 123 124 return SOS_OK; 124 return SOS_OK; 125 } 125 } 126 126 127 127 128 struct sos_process *sos_process_create(const c 128 struct sos_process *sos_process_create(const char *name, 129 sos_boo 129 sos_bool_t do_copy_current_process) 130 { 130 { 131 sos_ret_t retval = SOS_OK; 131 sos_ret_t retval = SOS_OK; 132 sos_ui32_t flags; 132 sos_ui32_t flags; 133 struct sos_process *proc; 133 struct sos_process *proc; 134 134 135 135 136 proc = (struct sos_process*) sos_kmem_cache_ 136 proc = (struct sos_process*) sos_kmem_cache_alloc(cache_struct_process, 0); 137 if (! proc) 137 if (! proc) 138 return NULL; 138 return NULL; 139 139 140 /* proc is already filled with 0 (cache has 140 /* proc is already filled with 0 (cache has SOS_KSLAB_CREATE_ZERO 141 flag) */ 141 flag) */ 142 142 143 /* Copy the file descriptors when needed */ 143 /* Copy the file descriptors when needed */ 144 if (do_copy_current_process) 144 if (do_copy_current_process) 145 { 145 { 146 struct sos_process * myself = sos_thread 146 struct sos_process * myself = sos_thread_get_current()->process; 147 int fd; 147 int fd; 148 148 149 for (fd = 0 ; fd < SOS_PROCESS_MAX_OPENE 149 for (fd = 0 ; fd < SOS_PROCESS_MAX_OPENED_FILES ; fd++) 150 if (NULL != myself->fds[fd]) 150 if (NULL != myself->fds[fd]) 151 { 151 { 152 retval = sos_fs_duplicate_opened_f 152 retval = sos_fs_duplicate_opened_file(myself->fds[fd], 153 153 proc, 154 154 & proc->fds[fd]); 155 if (SOS_OK != retval) 155 if (SOS_OK != retval) 156 goto end_create_proc; 156 goto end_create_proc; 157 } 157 } 158 158 159 retval = sos_fs_duplicate_opened_file(my 159 retval = sos_fs_duplicate_opened_file(myself->root, 160 pr 160 proc, 161 & 161 & proc->root); 162 if (SOS_OK != retval) 162 if (SOS_OK != retval) 163 goto end_create_proc; 163 goto end_create_proc; 164 164 165 retval = sos_fs_duplicate_opened_file(my 165 retval = sos_fs_duplicate_opened_file(myself->cwd, 166 pr 166 proc, 167 & 167 & proc->cwd); 168 if (SOS_OK != retval) 168 if (SOS_OK != retval) 169 goto end_create_proc; 169 goto end_create_proc; 170 } 170 } 171 171 172 if (do_copy_current_process) 172 if (do_copy_current_process) 173 proc->address_space = sos_umem_vmm_duplica 173 proc->address_space = sos_umem_vmm_duplicate_current_thread_as(proc); 174 else 174 else 175 proc->address_space = sos_umem_vmm_create_ 175 proc->address_space = sos_umem_vmm_create_empty_as(proc); 176 176 177 if (NULL == proc->address_space) 177 if (NULL == proc->address_space) 178 { 178 { 179 /* Error */ 179 /* Error */ 180 retval = -SOS_ENOMEM; 180 retval = -SOS_ENOMEM; 181 goto end_create_proc; 181 goto end_create_proc; 182 } 182 } 183 183 184 if (!name) 184 if (!name) 185 { 185 { 186 struct sos_thread * cur_thr = sos_thread 186 struct sos_thread * cur_thr = sos_thread_get_current(); 187 if (do_copy_current_process) 187 if (do_copy_current_process) 188 name = cur_thr->process->name; 188 name = cur_thr->process->name; 189 else 189 else 190 name = "[UNNAMED]"; 190 name = "[UNNAMED]"; 191 } 191 } 192 192 193 strzcpy(proc->name, name, SOS_PROCESS_MAX_NA 193 strzcpy(proc->name, name, SOS_PROCESS_MAX_NAMELEN); 194 194 195 /* Add it to the global list of processes */ 195 /* Add it to the global list of processes */ 196 sos_disable_IRQs(flags); 196 sos_disable_IRQs(flags); 197 list_add_tail(process_list, proc); 197 list_add_tail(process_list, proc); 198 sos_restore_IRQs(flags); 198 sos_restore_IRQs(flags); 199 199 200 /* Mark the process as referenced */ 200 /* Mark the process as referenced */ 201 proc->ref_cnt = 1; 201 proc->ref_cnt = 1; 202 202 203 end_create_proc: 203 end_create_proc: 204 if (SOS_OK != retval) 204 if (SOS_OK != retval) 205 { 205 { 206 int fd; 206 int fd; 207 207 208 /* Close the file descriptors */ 208 /* Close the file descriptors */ 209 for (fd = 0 ; fd < SOS_PROCESS_MAX_OPENE 209 for (fd = 0 ; fd < SOS_PROCESS_MAX_OPENED_FILES ; fd++) 210 if (NULL != proc->fds[fd]) 210 if (NULL != proc->fds[fd]) 211 { 211 { 212 sos_fs_close(proc->fds[fd]); 212 sos_fs_close(proc->fds[fd]); 213 proc->fds[fd] = NULL; 213 proc->fds[fd] = NULL; 214 } 214 } 215 215 216 if (proc->root) 216 if (proc->root) 217 sos_fs_close(proc->root); 217 sos_fs_close(proc->root); 218 if (proc->cwd) 218 if (proc->cwd) 219 sos_fs_close(proc->cwd); 219 sos_fs_close(proc->cwd); 220 proc->root = proc->cwd = NULL; 220 proc->root = proc->cwd = NULL; 221 221 222 sos_kmem_cache_free((sos_vaddr_t) proc); 222 sos_kmem_cache_free((sos_vaddr_t) proc); 223 proc = NULL; 223 proc = NULL; 224 } 224 } 225 225 226 return proc; 226 return proc; 227 } 227 } 228 228 229 229 230 inline 230 inline 231 sos_ret_t sos_process_ref(struct sos_process * 231 sos_ret_t sos_process_ref(struct sos_process *proc) 232 { 232 { 233 sos_ui32_t flags; 233 sos_ui32_t flags; 234 sos_disable_IRQs(flags); 234 sos_disable_IRQs(flags); 235 proc->ref_cnt ++; 235 proc->ref_cnt ++; 236 sos_restore_IRQs(flags); 236 sos_restore_IRQs(flags); 237 return SOS_OK; 237 return SOS_OK; 238 } 238 } 239 239 240 240 241 sos_count_t sos_process_get_nb_threads(const s 241 sos_count_t sos_process_get_nb_threads(const struct sos_process *proc) 242 { 242 { 243 sos_count_t retval; 243 sos_count_t retval; 244 sos_ui32_t flags; 244 sos_ui32_t flags; 245 sos_disable_IRQs(flags); 245 sos_disable_IRQs(flags); 246 retval = proc->nb_threads; 246 retval = proc->nb_threads; 247 sos_restore_IRQs(flags); 247 sos_restore_IRQs(flags); 248 return retval; 248 return retval; 249 } 249 } 250 250 251 251 252 struct sos_mm_context * 252 struct sos_mm_context * 253 sos_process_get_mm_context(const struct sos_pr 253 sos_process_get_mm_context(const struct sos_process *proc) 254 { 254 { 255 return sos_umem_vmm_get_mm_context(proc->add 255 return sos_umem_vmm_get_mm_context(proc->address_space); 256 } 256 } 257 257 258 258 259 struct sos_umem_vmm_as * 259 struct sos_umem_vmm_as * 260 sos_process_get_address_space(const struct sos 260 sos_process_get_address_space(const struct sos_process *proc) 261 { 261 { 262 return proc->address_space; 262 return proc->address_space; 263 } 263 } 264 264 265 265 266 sos_ret_t sos_process_set_address_space(struct 266 sos_ret_t sos_process_set_address_space(struct sos_process *proc, 267 struct 267 struct sos_umem_vmm_as *new_as) 268 { 268 { 269 int fd; 269 int fd; 270 270 271 /* Close the FD that are not allowed to be d 271 /* Close the FD that are not allowed to be duplicated */ 272 for (fd = 0 ; fd < SOS_PROCESS_MAX_OPENED_FI 272 for (fd = 0 ; fd < SOS_PROCESS_MAX_OPENED_FILES ; fd++) 273 if ( (NULL != proc->fds[fd]) 273 if ( (NULL != proc->fds[fd]) 274 && (proc->fds[fd]->open_flags & SOS_F 274 && (proc->fds[fd]->open_flags & SOS_FS_OPEN_CLOSEONEXEC) ) 275 { 275 { 276 sos_fs_close(proc->fds[fd]); 276 sos_fs_close(proc->fds[fd]); 277 proc->fds[fd] = NULL; 277 proc->fds[fd] = NULL; 278 } 278 } 279 279 280 if (proc->address_space) 280 if (proc->address_space) 281 { 281 { 282 sos_ret_t retval = sos_umem_vmm_delete_a 282 sos_ret_t retval = sos_umem_vmm_delete_as(proc->address_space); 283 if (SOS_OK != retval) 283 if (SOS_OK != retval) 284 return retval; 284 return retval; 285 } 285 } 286 286 287 proc->address_space = new_as; 287 proc->address_space = new_as; 288 return SOS_OK; 288 return SOS_OK; 289 } 289 } 290 290 291 291 292 struct sos_fs_opened_file * 292 struct sos_fs_opened_file * 293 sos_process_get_root(const struct sos_process 293 sos_process_get_root(const struct sos_process *proc) 294 { 294 { 295 return proc->root; 295 return proc->root; 296 } 296 } 297 297 298 298 299 struct sos_fs_opened_file * 299 struct sos_fs_opened_file * 300 sos_process_get_cwd(const struct sos_process * 300 sos_process_get_cwd(const struct sos_process *proc) 301 { 301 { 302 return proc->cwd; 302 return proc->cwd; 303 } 303 } 304 304 305 305 306 struct sos_fs_opened_file * 306 struct sos_fs_opened_file * 307 sos_process_get_opened_file(const struct sos_p 307 sos_process_get_opened_file(const struct sos_process *proc, 308 int fd) 308 int fd) 309 { 309 { 310 if ((fd < 0) || (fd >= SOS_PROCESS_MAX_OPENE 310 if ((fd < 0) || (fd >= SOS_PROCESS_MAX_OPENED_FILES)) 311 return NULL; 311 return NULL; 312 return proc->fds[fd]; 312 return proc->fds[fd]; 313 } 313 } 314 314 315 315 316 sos_ret_t 316 sos_ret_t 317 sos_process_chroot(struct sos_process *proc, 317 sos_process_chroot(struct sos_process *proc, 318 struct sos_fs_opened_file * 318 struct sos_fs_opened_file * new_root, 319 struct sos_fs_opened_file * 319 struct sos_fs_opened_file ** old_root) 320 { 320 { 321 *old_root = proc->root; 321 *old_root = proc->root; 322 proc->root = new_root; 322 proc->root = new_root; 323 323 324 return SOS_OK; 324 return SOS_OK; 325 } 325 } 326 326 327 327 328 sos_ret_t 328 sos_ret_t 329 sos_process_chdir(struct sos_process *proc, 329 sos_process_chdir(struct sos_process *proc, 330 struct sos_fs_opened_file * 330 struct sos_fs_opened_file * new_cwd, 331 struct sos_fs_opened_file ** 331 struct sos_fs_opened_file ** old_cwd) 332 { 332 { 333 *old_cwd = proc->cwd; 333 *old_cwd = proc->cwd; 334 proc->cwd = new_cwd; 334 proc->cwd = new_cwd; 335 335 336 return SOS_OK; 336 return SOS_OK; 337 } 337 } 338 338 339 339 340 sos_ret_t 340 sos_ret_t 341 sos_process_register_opened_file(struct sos_pr 341 sos_process_register_opened_file(struct sos_process *proc, 342 struct sos_fs 342 struct sos_fs_opened_file * of) 343 { 343 { 344 int i; 344 int i; 345 for (i = 0 ; i < SOS_PROCESS_MAX_OPENED_FILE 345 for (i = 0 ; i < SOS_PROCESS_MAX_OPENED_FILES ; i++) 346 if (NULL == proc->fds[i]) 346 if (NULL == proc->fds[i]) 347 { 347 { 348 proc->fds[i] = of; 348 proc->fds[i] = of; 349 return i; 349 return i; 350 } 350 } 351 351 352 return -SOS_EMFILE; 352 return -SOS_EMFILE; 353 } 353 } 354 354 355 355 356 sos_ret_t 356 sos_ret_t 357 sos_process_unregister_opened_file(struct sos_ 357 sos_process_unregister_opened_file(struct sos_process *proc, 358 int fd) 358 int fd) 359 { 359 { 360 if ((fd < 0) || (fd >= SOS_PROCESS_MAX_OPENE 360 if ((fd < 0) || (fd >= SOS_PROCESS_MAX_OPENED_FILES)) 361 return -SOS_EBADF; 361 return -SOS_EBADF; 362 362 363 proc->fds[fd] = NULL; 363 proc->fds[fd] = NULL; 364 return SOS_OK; 364 return SOS_OK; 365 } 365 } 366 366 367 367 368 368 369 /* ******************************************* 369 /* *************************************************** 370 * Restricted functions 370 * Restricted functions 371 */ 371 */ 372 372 373 373 374 sos_ret_t sos_process_register_thread(struct s 374 sos_ret_t sos_process_register_thread(struct sos_process *in_proc, 375 struct s 375 struct sos_thread *thr) 376 { 376 { 377 sos_ui32_t flags; 377 sos_ui32_t flags; 378 378 379 /* The process is assumed to be referenced b 379 /* The process is assumed to be referenced by somebody */ 380 SOS_ASSERT_FATAL(in_proc->ref_cnt > 0); 380 SOS_ASSERT_FATAL(in_proc->ref_cnt > 0); 381 381 382 /* Only threads that are being created are a 382 /* Only threads that are being created are allowed to be attached to 383 a process */ 383 a process */ 384 SOS_ASSERT_FATAL(thr->state == SOS_THR_CREAT 384 SOS_ASSERT_FATAL(thr->state == SOS_THR_CREATED); 385 385 386 /* Update the list of the threads in the pro 386 /* Update the list of the threads in the process */ 387 thr->process = in_proc; 387 thr->process = in_proc; 388 388 389 /* Increment the reference count for the pro 389 /* Increment the reference count for the process */ 390 sos_process_ref(in_proc); 390 sos_process_ref(in_proc); 391 391 392 /* Add the thread to the process thread's li 392 /* Add the thread to the process thread's list */ 393 sos_disable_IRQs(flags); 393 sos_disable_IRQs(flags); 394 list_add_tail_named(in_proc->thread_list, th 394 list_add_tail_named(in_proc->thread_list, thr, 395 prev_in_process, next_in 395 prev_in_process, next_in_process); 396 in_proc->nb_threads ++; 396 in_proc->nb_threads ++; 397 sos_restore_IRQs(flags); 397 sos_restore_IRQs(flags); 398 398 399 return SOS_OK; 399 return SOS_OK; 400 } 400 } 401 401 402 402 403 /** The function responsible for releasing the 403 /** The function responsible for releasing the resources held by the 404 process. */ 404 process. */ 405 sos_ret_t sos_process_unref(struct sos_process 405 sos_ret_t sos_process_unref(struct sos_process *proc) 406 { 406 { 407 sos_ui32_t flags; 407 sos_ui32_t flags; 408 sos_ret_t retval; 408 sos_ret_t retval; 409 int fd; 409 int fd; 410 410 411 SOS_ASSERT_FATAL(proc->ref_cnt > 0); 411 SOS_ASSERT_FATAL(proc->ref_cnt > 0); 412 412 413 sos_disable_IRQs(flags); 413 sos_disable_IRQs(flags); 414 proc->ref_cnt --; 414 proc->ref_cnt --; 415 if (proc->ref_cnt > 0) 415 if (proc->ref_cnt > 0) 416 { 416 { 417 sos_restore_IRQs(flags); 417 sos_restore_IRQs(flags); 418 return -SOS_EBUSY; 418 return -SOS_EBUSY; 419 } 419 } 420 list_delete(process_list, proc); 420 list_delete(process_list, proc); 421 sos_restore_IRQs(flags); 421 sos_restore_IRQs(flags); 422 422 423 /* Close the file descriptors */ 423 /* Close the file descriptors */ 424 for (fd = 0 ; fd < SOS_PROCESS_MAX_OPENED_FI 424 for (fd = 0 ; fd < SOS_PROCESS_MAX_OPENED_FILES ; fd++) 425 if (NULL != proc->fds[fd]) 425 if (NULL != proc->fds[fd]) 426 { 426 { 427 sos_fs_close(proc->fds[fd]); 427 sos_fs_close(proc->fds[fd]); 428 proc->fds[fd] = NULL; 428 proc->fds[fd] = NULL; 429 } 429 } 430 430 431 sos_fs_close(proc->root); 431 sos_fs_close(proc->root); 432 sos_fs_close(proc->cwd); 432 sos_fs_close(proc->cwd); 433 proc->root = proc->cwd = NULL; 433 proc->root = proc->cwd = NULL; 434 434 435 /* First: free the user address space */ 435 /* First: free the user address space */ 436 retval = sos_umem_vmm_delete_as(proc->addres 436 retval = sos_umem_vmm_delete_as(proc->address_space); 437 SOS_ASSERT_FATAL(SOS_OK == retval); 437 SOS_ASSERT_FATAL(SOS_OK == retval); 438 438 439 /* Free the process structure */ 439 /* Free the process structure */ 440 sos_kmem_cache_free((sos_vaddr_t)proc); 440 sos_kmem_cache_free((sos_vaddr_t)proc); 441 441 442 return SOS_OK; 442 return SOS_OK; 443 } 443 } 444 444 445 445 446 sos_ret_t sos_process_unregister_thread(struct 446 sos_ret_t sos_process_unregister_thread(struct sos_thread *thr) 447 { 447 { 448 sos_ui32_t flags; 448 sos_ui32_t flags; 449 struct sos_process * in_proc = thr->process; 449 struct sos_process * in_proc = thr->process; 450 450 451 SOS_ASSERT_FATAL(thr->state == SOS_THR_ZOMBI 451 SOS_ASSERT_FATAL(thr->state == SOS_THR_ZOMBIE); 452 452 453 /* Update the list of the threads in the pro 453 /* Update the list of the threads in the process */ 454 thr->process = NULL; 454 thr->process = NULL; 455 sos_disable_IRQs(flags); 455 sos_disable_IRQs(flags); 456 list_delete_named(in_proc->thread_list, thr, 456 list_delete_named(in_proc->thread_list, thr, 457 prev_in_process, next_in_p 457 prev_in_process, next_in_process); 458 SOS_ASSERT_FATAL(in_proc->nb_threads > 0); 458 SOS_ASSERT_FATAL(in_proc->nb_threads > 0); 459 in_proc->nb_threads --; 459 in_proc->nb_threads --; 460 sos_restore_IRQs(flags); 460 sos_restore_IRQs(flags); 461 461 462 /* Unreference the process */ 462 /* Unreference the process */ 463 sos_process_unref(in_proc); 463 sos_process_unref(in_proc); 464 464 465 return SOS_OK; 465 return SOS_OK; 466 } 466 } 467 467 468 468 469 sos_ret_t sos_process_set_name(struct sos_proc 469 sos_ret_t sos_process_set_name(struct sos_process * proc, 470 const char * ne 470 const char * new_name) 471 { 471 { 472 strzcpy(proc->name, new_name, SOS_PROCESS_MA 472 strzcpy(proc->name, new_name, SOS_PROCESS_MAX_NAMELEN); 473 return SOS_OK; 473 return SOS_OK; 474 } 474 }
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