From 6ab344ae280550629729e9a6ffce87283f96f705 Mon Sep 17 00:00:00 2001 From: englebass Date: Sun, 29 Aug 2010 08:47:37 +0000 Subject: [PATCH] Always munmap mmap'ed data git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/efreet@51713 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33 --- src/bin/efreet_desktop_cache_create.c | 38 +++++++++++++------------- src/lib/efreet_desktop.c | 51 ++++++++++++++++++----------------- 2 files changed, 45 insertions(+), 44 deletions(-) diff --git a/src/bin/efreet_desktop_cache_create.c b/src/bin/efreet_desktop_cache_create.c index 3f8b10c..71dc0c9 100644 --- a/src/bin/efreet_desktop_cache_create.c +++ b/src/bin/efreet_desktop_cache_create.c @@ -209,7 +209,6 @@ main(int argc, char **argv) Eina_List *dirs = NULL, *user_dirs = NULL; int priority = 0; char *dir = NULL; - char *map = MAP_FAILED; char *path; int fd = -1, tmpfd, dirsfd = -1; struct stat st; @@ -297,25 +296,25 @@ main(int argc, char **argv) if (!dirs) goto error; dirsfd = open(efreet_desktop_cache_dirs(), O_APPEND | O_RDWR, S_IRUSR | S_IWUSR); - if ((dirsfd > 0) && (fstat(dirsfd, &st) == 0) && (st.st_size > 0)) + if (dirsfd >= 0) { - char *p; - - map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, dirsfd, 0); - if (map == MAP_FAILED) goto error; - p = map; - while (p < map + st.st_size) + if ((fstat(dirsfd, &st) == 0) && (st.st_size > 0)) { - unsigned int size = *(unsigned int *)p; - p += sizeof(unsigned int); - user_dirs = eina_list_append(user_dirs, eina_stringshare_add(p)); - p += size; + char *p; + char *map; + + map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, dirsfd, 0); + if (map == MAP_FAILED) goto error; + p = map; + while (p < map + st.st_size) + { + unsigned int size = *(unsigned int *)p; + p += sizeof(unsigned int); + user_dirs = eina_list_append(user_dirs, eina_stringshare_add(p)); + p += size; + } + munmap(map, st.st_size); } - munmap(map, st.st_size); - map = MAP_FAILED; - } - if (dirsfd > 0) - { close(dirsfd); dirsfd = -1; unlink(efreet_desktop_cache_dirs()); @@ -372,7 +371,7 @@ main(int argc, char **argv) if (old) eet_close(old); } - + /* cleanup */ eet_close(util_ef); eet_close(ef); @@ -406,8 +405,7 @@ main(int argc, char **argv) close(fd); return 0; error: - if (map != MAP_FAILED) munmap(map, st.st_size); - if (dirsfd > 0) close(dirsfd); + if (dirsfd >= 0) close(dirsfd); IF_FREE(dir); efreet_desktop_edd_shutdown(edd); edd_error: diff --git a/src/lib/efreet_desktop.c b/src/lib/efreet_desktop.c index d910ad8..8ac1a8c 100644 --- a/src/lib/efreet_desktop.c +++ b/src/lib/efreet_desktop.c @@ -75,7 +75,7 @@ static Eina_List *old_caches = NULL; static Eina_Hash *change_monitors = NULL; -#ifdef EFREET_MODULE_LOG_DOM +#ifdef EFREET_MODULE_LOG_DOM #undef EFREET_MODULE_LOG_DOM #endif @@ -1334,7 +1334,6 @@ efreet_desktop_write_cache_dirs_file(void) char file[PATH_MAX]; int fd = -1; int cachefd = -1; - char *map = MAP_FAILED; char *dir; struct stat st; struct flock fl; @@ -1357,6 +1356,7 @@ efreet_desktop_write_cache_dirs_file(void) { Eina_List *l, *ln; char *p; + char *map; map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, cachefd, 0); if (map == MAP_FAILED) goto error; @@ -1376,6 +1376,7 @@ efreet_desktop_write_cache_dirs_file(void) } p += size; } + munmap(map, st.st_size); } EINA_LIST_FREE(efreet_desktop_dirs, dir) { @@ -1397,7 +1398,6 @@ efreet_desktop_write_cache_dirs_file(void) return 1; error: - if (map != MAP_FAILED) munmap(map, st.st_size); if (fd >= 0) close(fd); if (cachefd >= 0) close(cachefd); return 0; @@ -1443,7 +1443,7 @@ efreet_desktop_cache_update_free(void *data, void *ev) { Efreet_Old_Cache *d; int dangling = 0; - + d = data; /* * All users should now had the chance to update their pointers, so we can now @@ -1453,19 +1453,19 @@ efreet_desktop_cache_update_free(void *data, void *ev) { Eina_Iterator *it; Eina_Hash_Tuple *tuple; - + it = eina_hash_iterator_tuple_new(d->desktop_cache); EINA_ITERATOR_FOREACH(it, tuple) { - printf("Efreet: %d:%s still in cache on cache close!\n", + printf("Efreet: %d:%s still in cache on cache close!\n", ((Efreet_Desktop *)tuple->data)->ref, (char *)tuple->key); dangling++; } eina_iterator_free(it); - + eina_hash_free(d->desktop_cache); } - /* + /* * If there are dangling references the eet file won't be closed - to * avoid crashes, but this will leak instead. */ @@ -1504,7 +1504,7 @@ efreet_desktop_update_cache_job(void *data __UNUSED__) struct flock fl; efreet_desktop_job = NULL; - + /* TODO: Retry update cache later */ if (efreet_desktop_exe_lock > 0) return; @@ -1567,28 +1567,31 @@ efreet_desktop_changes_listen(void) } dirsfd = open(efreet_desktop_cache_dirs(), O_RDONLY, S_IRUSR | S_IWUSR); - if ((dirsfd > 0) && (fstat(dirsfd, &st) == 0) && (st.st_size > 0)) + if (dirsfd >= 0) { - char *p; - char *map; - - map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, dirsfd, 0); - if (map == MAP_FAILED) goto error; - p = map; - while (p < map + st.st_size) + if ((fstat(dirsfd, &st) == 0) && (st.st_size > 0)) { - unsigned int size = *(unsigned int *)p; - p += sizeof(unsigned int); - efreet_desktop_changes_monitor_add(p); - p += size; + char *p; + char *map; + + map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, dirsfd, 0); + if (map == MAP_FAILED) goto error; + p = map; + while (p < map + st.st_size) + { + unsigned int size = *(unsigned int *)p; + p += sizeof(unsigned int); + efreet_desktop_changes_monitor_add(p); + p += size; + } + munmap(map, st.st_size); } - munmap(map, st.st_size); + close(dirsfd); } - if (dirsfd > 0) close(dirsfd); return; error: - if (dirsfd > 0) close(dirsfd); + if (dirsfd >= 0) close(dirsfd); } static void -- 2.7.4