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Use preprocessor macros to automatically detect whether or not

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posix_allocate() is available.  (It is generally available on Linux
but not on Mac.)  Ticket [5eaa61ea1881040b17449ca043b6f8fd9ca55dc3]

FossilOrigin-Name: 597333f1024092b94bcd8772541e19a0f707bd40
This commit is contained in:
drh 2012-11-13 11:08:49 +00:00
parent 0fbb50ee15
commit 6033e15aa2
3 changed files with 14 additions and 10 deletions
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15
manifest
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@ -1,5 +1,5 @@
C When\savailable,\suse\sposix_fallocate()\srather\sthan\sftruncate()\sto\sallocate\nspace\sfor\smmap()ed\s-shm\sfiles,\ssince\sposix_fallocate()\sgives\san\serror\sif\nno\sdisk\sspace\sis\savailable\swhereas\sftruncate()\sis\ssilent\sand\sleaves\sthe\ssystem\nvulnerable\sto\sa\sSIGBUS\supon\sfirst\swrite\sto\sthe\smmap()ed\sregion.\nTicket\s[5eaa61ea1881040b17449ca043b6f8fd9ca55dc3] C Use\spreprocessor\smacros\sto\sautomatically\sdetect\swhether\sor\snot\nposix_allocate()\sis\savailable.\s\s(It\sis\sgenerally\savailable\son\sLinux\nbut\snot\son\sMac.)\s\sTicket\s[5eaa61ea1881040b17449ca043b6f8fd9ca55dc3]
D 2012-11-13T10:54:12.768 D 2012-11-13T11:08:49.725
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in 82c41c0ed4cc94dd3cc7d498575b84c57c2c2384 F Makefile.in 82c41c0ed4cc94dd3cc7d498575b84c57c2c2384
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@ -160,7 +160,7 @@ F src/notify.c 976dd0f6171d4588e89e874fcc765e92914b6d30
F src/os.c e1acdc09ff3ac2412945cca9766e2dcf4675f31c F src/os.c e1acdc09ff3ac2412945cca9766e2dcf4675f31c
F src/os.h 027491c77d2404c0a678bb3fb06286f331eb9b57 F src/os.h 027491c77d2404c0a678bb3fb06286f331eb9b57
F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04 F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04
F src/os_unix.c fad4c9cbf89aa5e5de1f5972458c39bd75418b16 F src/os_unix.c b75d9b0876ad3fde151843ad389b4c3dd727c662
F src/os_win.c 43ec1285357e5d5d919cb0492eac775c58ad7d12 F src/os_win.c 43ec1285357e5d5d919cb0492eac775c58ad7d12
F src/pager.c ed53fe75a269c1d67645fe079ea0f3f0ce6492d5 F src/pager.c ed53fe75a269c1d67645fe079ea0f3f0ce6492d5
F src/pager.h 1109a06578ec5574dc2c74cf8d9f69daf36fe3e0 F src/pager.h 1109a06578ec5574dc2c74cf8d9f69daf36fe3e0
@ -1024,10 +1024,7 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
F tool/win/sqlite.vsix 97894c2790eda7b5bce3cc79cb2a8ec2fde9b3ac F tool/win/sqlite.vsix 97894c2790eda7b5bce3cc79cb2a8ec2fde9b3ac
P 5a3b07f0f5dfae7eea870303f52f37d6a17f1da2 P 356259617cfad04492a02912fdf781f54a2b4494
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T *branch * tkt-5eaa61ea18
T *sym-tkt-5eaa61ea18 *
T -sym-trunk *
U drh U drh
Z 97e3b0ff73b00a5f41754576708d0771 Z 2b21d116614b6c7fcc6d8aed3f12096b

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manifest.uuid
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356259617cfad04492a02912fdf781f54a2b4494 597333f1024092b94bcd8772541e19a0f707bd40

7
src/os_unix.c
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@ -46,6 +46,13 @@
#include "sqliteInt.h" #include "sqliteInt.h"
#if SQLITE_OS_UNIX /* This file is used on unix only */ #if SQLITE_OS_UNIX /* This file is used on unix only */
/* Use posix_fallocate() if it is available
*/
#if !defined(HAVE_POSIX_FALLOCATE) \
&& (_XOPEN_SOURCE >= 600 || _POSIX_C_SOURCE >= 200112L)
# define HAVE_POSIX_FALLOCATE 1
#endif
/* /*
** There are various methods for file locking used for concurrency ** There are various methods for file locking used for concurrency
** control: ** control: