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| author | Alejandro Colomar <alx@kernel.org> | 2023-05-03 00:48:14 +0200 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2023-05-03 00:48:22 +0200 |
| commit | fe5dba139dc089eae4061fdc17f087e71f48b198 (patch) | |
| tree | 54af56b1b0138bde9a21e99372ab68ce4d64564a /man3/malloc_hook.3 | |
| parent | 5a0d9ed151e6449d978fabdd654cacc17b20a235 (diff) | |
| download | man-pages-fe5dba139dc089eae4061fdc17f087e71f48b198.tar.gz | |
man*/, man.ignore.grep: srcfix; warn about blank lines
- Use the dummy character to avoid warnings in examples.
- Re-enable the warning.
Suggested-by: "G. Branden Robinson" <g.branden.robinson@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Diffstat (limited to 'man3/malloc_hook.3')
| -rw-r--r-- | man3/malloc_hook.3 | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/man3/malloc_hook.3 b/man3/malloc_hook.3 index 83b213cd56..e524d59397 100644 --- a/man3/malloc_hook.3 +++ b/man3/malloc_hook.3 @@ -105,45 +105,45 @@ Here is a short example of how to use these variables. .EX #include <stdio.h> #include <malloc.h> - +\& /* Prototypes for our hooks */ static void my_init_hook(void); static void *my_malloc_hook(size_t, const void *); - +\& /* Variables to save original hooks */ static void *(*old_malloc_hook)(size_t, const void *); - +\& /* Override initializing hook from the C library */ void (*__malloc_initialize_hook)(void) = my_init_hook; - +\& static void my_init_hook(void) { old_malloc_hook = __malloc_hook; __malloc_hook = my_malloc_hook; } - +\& static void * my_malloc_hook(size_t size, const void *caller) { void *result; - +\& /* Restore all old hooks */ __malloc_hook = old_malloc_hook; - +\& /* Call recursively */ result = malloc(size); - +\& /* Save underlying hooks */ old_malloc_hook = __malloc_hook; - +\& /* printf() might call malloc(), so protect it too */ printf("malloc(%zu) called from %p returns %p\en", size, caller, result); - +\& /* Restore our own hooks */ __malloc_hook = my_malloc_hook; - +\& return result; } .EE |