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| author | Diego 'Flameeyes' Pettenò <flameeyes@gmail.com> | 2006-09-16 19:26:48 +0000 |
|---|---|---|
| committer | Diego 'Flameeyes' Pettenò <flameeyes@gmail.com> | 2006-09-16 19:26:48 +0000 |
| commit | a4f82c060ea232d998a7d1162768b4efb9dfd67e (patch) | |
| tree | 8cbafec93f01b90a09f4daa5503dfabdea5bbbb1 | |
| parent | e48cee3d475b180d54e5d3d0650af295fa1c18ad (diff) | |
| download | xine-lib-a4f82c060ea232d998a7d1162768b4efb9dfd67e.tar.gz xine-lib-a4f82c060ea232d998a7d1162768b4efb9dfd67e.tar.bz2 | |
Provide an --enable-mmap switch to enable mmap, and default to the previous behaviour (no-mmap).
Problems to fix before enabling mmap() again:
- SIGBUS when the file disappears (if can be worked around, low priority);
- the size of the mmap()ed file is a constant, if the file is open for appending by another process mmap() should not be used;
- there's a pointless memcpy() in the cache plugin that should be avoided for mmap() files.
CVS patchset: 8267
CVS date: 2006/09/16 19:26:48
| -rw-r--r-- | configure.ac | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 431fb6b8b..b17515b03 100644 --- a/configure.ac +++ b/configure.ac @@ -1921,6 +1921,16 @@ else fi AC_SUBST(W32DLL_DEP) +dnl -------------------------------------------- +dnl mmap() support +dnl -------------------------------------------- + +AC_ARG_ENABLE([mmap], + AS_HELP_STRING([--enable-mmap], [Enable mmap() file loading (default: no)])) + +if test "x$enable_mmap" = "xyes"; then + AC_CHECK_FUNCS([mmap]) +fi dnl --------------------------------------------- dnl ip_mreqn @@ -1938,7 +1948,7 @@ dnl --------------------------------------------- AC_SYS_LARGEFILE AC_CHECK_LIB(posix4, sched_get_priority_min) -AC_CHECK_FUNCS([_vsnprintf _snprintf _stricmp _strnicmp vsscanf sigaction sigset getpwuid_r nanosleep lstat memset readlink strchr strcasecmp strncasecmp mmap]) +AC_CHECK_FUNCS([_vsnprintf _snprintf _stricmp _strnicmp vsscanf sigaction sigset getpwuid_r nanosleep lstat memset readlink strchr strcasecmp strncasecmp]) AC_FUNC_FSEEKO AC_DEFINE(_GNU_SOURCE) AC_CHECK_HEADERS(assert.h byteswap.h malloc.h execinfo.h ucontext.h sys/mman.h sys/mixer.h libgen.h netdb.h dirent.h sys/times.h sys/ioctl.h sys/param.h) |