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| author | Nick Mathewson <nickm@torproject.org> | 2011-09-12 14:53:39 -0400 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2011-09-12 14:53:39 -0400 |
| commit | 8a2310408faf94ee38f53c04c5e56566d34f7a13 (patch) | |
| tree | f77647c48288e7818e456a5a8694f5febab0774e /include/event2/util.h | |
| parent | e20eabd69a43d40d199de6efbddf3105273df19b (diff) | |
| download | libevent-8a2310408faf94ee38f53c04c5e56566d34f7a13.tar.gz | |
Build with large-file support on platforms where it matters
Some hosts require you to define certain options to get a large off_t
instead of a small one, to get useful ftell and fseek calls instead of
ones that can only support 2GB files, and so on. This patch makes
Libevent support those platforms by:
* Defining the right options when we build, and
* Changing our API so that it does not depend on the platform's
definition of off_t.
Based on discusion with Michael Herf
Diffstat (limited to 'include/event2/util.h')
| -rw-r--r-- | include/event2/util.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/event2/util.h b/include/event2/util.h index c71fdcf5..2494b384 100644 --- a/include/event2/util.h +++ b/include/event2/util.h @@ -193,8 +193,21 @@ extern "C" { #define ev_ssize_t ssize_t #endif +/* Note that we define ev_off_t based on the compile-time size of off_t that + * we used to build Libevent, and not based on the current size of off_t. + * (For example, we don't define ev_off_t to off_t.). We do this because + * some systems let you build your software with different off_t sizes + * at runtime, and so putting in any dependency on off_t would risk API + * mismatch. + */ #ifdef _WIN32 #define ev_off_t ev_int64_t +#elif _EVENT_SIZEOF_OFF_T == 8 +#define ev_off_t ev_int64_t +#elif _EVENT_SIZEOF_OFF_T == 4 +#define ev_off_t ev_int32_t +#elif defined(_EVENT_IN_DOXYGEN) +#define ev_off_t ... #else #define ev_off_t off_t #endif |