112 static int test_lock(char * lockfile)  in test_lock()  argument
116   FILE * fp   = fopen(lockfile, "r");  in test_lock()
139 static int try_lock(char * template, char * lockfile)  in try_lock()  argument
145     ret = link(template, lockfile);  in try_lock()
164 static int create_lockfile(char * lockfile)  in create_lockfile()  argument
168   char * template = malloc(strlen(lockfile) + 7);  in create_lockfile()
172   strcpy(template, lockfile);  in create_lockfile()
190   ret = try_lock(template, lockfile);  in create_lockfile()
205   char * lockfile = malloc(strlen(file) + 6);  in acquire_lock()  local
207   assert(lockfile != NULL);  in acquire_lock()
209   strcpy(lockfile, file);  in acquire_lock()
210   strcat(lockfile, ".lock");  in acquire_lock()
212   add_this_lockfile(lockfile);  in acquire_lock()
213   if (create_lockfile(lockfile) < 0)  in acquire_lock()
215       free_this_lockfile(lockfile);  in acquire_lock()
216       free(lockfile);  in acquire_lock()
221   free(lockfile);  in acquire_lock()
229   char * lockfile = malloc(strlen(file) + 6);  in valid_lock()  local
231   assert(lockfile != NULL);  in valid_lock()
233   strcpy(lockfile, file);  in valid_lock()
234   strcat(lockfile, ".lock");  in valid_lock()
236   ret = stat(lockfile, &buf);  in valid_lock()
239       free(lockfile);  in valid_lock()
243   ret = test_lock(lockfile);  in valid_lock()
250   char * lockfile = malloc(strlen(file) + 6);  in remove_lock()  local
252   assert(lockfile != NULL);  in remove_lock()
254   strcpy(lockfile, file);  in remove_lock()
255   strcat(lockfile, ".lock");  in remove_lock()
257   ret = unlink(lockfile);  in remove_lock()
266       free_this_lockfile(lockfile);  in remove_lock()
270   free(lockfile);  in remove_lock()