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| author | Jeff Sharkey <jsharkey@android.com> | 2012-09-13 15:07:41 -0700 |
|---|---|---|
| committer | Android (Google) Code Review <android-gerrit@google.com> | 2012-09-13 15:07:42 -0700 |
| commit | 7918d816401a92456709ba64ccbe60b8e5ffb14c (patch) | |
| tree | f336403c40d12b71c15306b55e428831b41f3647 /include | |
| parent | ad59e0a90ec414ddc59cbe73319039981f433c53 (diff) | |
| parent | ddb173394430a7b55b0c24896a843556f5f8de7a (diff) | |
| download | system_core-7918d816401a92456709ba64ccbe60b8e5ffb14c.zip system_core-7918d816401a92456709ba64ccbe60b8e5ffb14c.tar.gz system_core-7918d816401a92456709ba64ccbe60b8e5ffb14c.tar.bz2 | |
Merge "Wrap system calls in TEMP_FAILURE_RETRY." into jb-mr1-dev
Diffstat (limited to 'include')
| -rw-r--r-- | include/cutils/fs.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/cutils/fs.h b/include/cutils/fs.h index 04c8839..fd5296b 100644 --- a/include/cutils/fs.h +++ b/include/cutils/fs.h @@ -19,6 +19,21 @@ #include <sys/types.h> +/* + * TEMP_FAILURE_RETRY is defined by some, but not all, versions of + * <unistd.h>. (Alas, it is not as standard as we'd hoped!) So, if it's + * not already defined, then define it here. + */ +#ifndef TEMP_FAILURE_RETRY +/* Used to retry syscalls that can return EINTR. */ +#define TEMP_FAILURE_RETRY(exp) ({ \ + typeof (exp) _rc; \ + do { \ + _rc = (exp); \ + } while (_rc == -1 && errno == EINTR); \ + _rc; }) +#endif + #ifdef __cplusplus extern "C" { #endif |