src/common.h


Log

Author Commit Date CI Message
Andreas Ericsson fb799dfe 2010-04-23T09:59:22 Merge remote branch 'ramsay/dev' * ramsay/dev: Add a pack index 'virtual function' to fetch an index entry Add a pack index 'virtual function' to search by file offset Change the interface of the pack index search function Add an 64-bit offset table index bounds check for v2 pack index Add a minimum size check when opening an v2 pack index file win32: Add separate MinGW and MSVC compatability header files Makefile: Add support for custom build options in config.mak file Fix some coding style issues
Andreas Ericsson 5dddf7c8 2010-04-14T20:41:57 Add block-sha1 in favour of the mozilla routines Since block-sha1 from git.git has such excellent performance, we can also get rid of the openssl dependency. It's rather simple to add it back later as an optional extra, but we really needn't bother to pull in the entire ssl library and have to deal with linking issues now that we have the portable and, performance-wise, truly excellent block-sha1 code to fall back on. Since this requires a slight revamp of the build rules anyway, we take the opportunity to fix including EXTRA_OBJS in the final build as well. The block-sha1 code was originally implemented for git.git by Linus Torvalds <torvalds@linux-foundation.org> and was later polished by Nicolas Pitre <nico@cam.org>. Signed-off-by: Andreas Ericsson <ae@op5.se>
Ramsay Jones e8cc449f 2010-02-19T21:49:22 win32: Add separate MinGW and MSVC compatability header files Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones 90d4d2f0 2010-01-11T19:27:50 win32: Use an 64-bit file offset type Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones a1c0728d 2009-12-21T15:54:50 Add support for the MinGW platform Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones cfe3a027 2010-01-15T22:07:44 Use a 64 bit off_t throughout the library and tests on POSIX Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones 04e88240 2009-06-17T22:21:10 win32: Define the ssize_t type using SSIZE_T if supported Some win32 compilers define the SSIZE_T type, with the same meaning and intent as ssize_t. If available, make ssize_t a synonym of SSIZE_T. At present, the Digital-Mars compiler is known not to define SSIZE_T, so we provide an SSIZE_T macro to use in the typedef. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones 8a086f87 2009-06-14T22:12:20 win32: Add support for the MS Visual C/C++ compiler Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones 502acd16 2009-03-23T18:37:51 win32: Add missing include for mkdir() and rmdir() Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 79ca2edc 2009-03-20T19:51:48 win32: Add routines to abstract memory-mapped file functions In particular, the git__mmap() and git__munmap() routines provide the interface to platform specific memory-mapped file facilities. We provide implementations for unix and win32, which can be found in their own sub-directories. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 840fb8b7 2009-02-18T18:53:48 win32: fixup some headers to improve win32 compilation Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 3a33c7b3 2009-01-02T20:51:47 Fix snprintf compiler warning on cygwin As far as gcc is concerned, the "z size specifier" is available as an extension to the language, which is available with or without any -std= switch. (I think you have to go back to 2.95 for a version of gcc which doesn't work.) Many other compilers have this as an extension as well (ie without the equivalent of -std=c99). Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce 2c4b7707 2008-12-31T16:06:48 Add git__fmt as an easier to use snprintf Checking the return value of snprintf is a pain, as it must be >= 0 and < sizeof(buffer). git__fmt is a simple wrapper to perform these checks. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce 028ef0de 2008-12-31T13:20:21 Add a mutex and atomic counter abstraction and implementations These abstractions can be used to implement an efficient resource reference counter and simple mutual exclusion. On pthreads we use pthread_mutex_t, except when we are also on glibc and can directly use its asm/atomic.h definitions. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce d44cfd46 2008-12-31T13:16:31 Cleanup our header inclusion order to ensure pthread.h is early If we are using threads we need to make sure pthread.h comes in before just about anything else. Some platforms enable macros that alter what other headers define. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce 64a47c01 2008-12-30T23:21:36 Wrap malloc and friends and report out of memory as GIT_ENOMEM We now forbid direct use of malloc, strdup or calloc within the library and instead use wrapper functions git__malloc, etc. to invoke the underlying library malloc and set git_errno to a no memory error code if the allocation fails. In the future once we have pack objects in memory we are likely to enhance these routines with garbage collection logic to purge cached pack data when allocations fail. Because the size of the function will grow somewhat large, we don't want to mark them for inline as gcc tends to aggressively inline, creating larger than expected executables. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce 064301cc 2008-12-30T22:07:56 Fix size_t snprintf warning by using PRIuPTR format macro This is the correct C99 format code for the size_t type when passed as an argument to the *printf family. If the platform doesn't define it, we assume %lu and just cross our fingers that its the proper setting for a size_t on this system. On most sane platforms, "unsigned long" is the underlying type of "size_t". Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce a1d34bc0 2008-12-30T21:49:38 Support building on Mac OS X by using pthread_getspecific for TLS The Mach-O format does not permit gcc to implement the __thread TLS specification, so we must instead emulate it using a single int cell allocated from memory and stored inside of the thread specific data associated with the current pthread. What makes this tricky is git_errno must be a valid lvalue, so we really need to return a pointer to the caller and deference it as part of the git_errno macro. The GCC-specific __attribute__((constructor)) extension is used to ensure the pthread_key_t is allocated before any Git functions are executed in the library, as this is necessary to access our thread specific storage. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce b3039bee 2008-12-30T21:25:13 Cleanup formatting in our head files to be more consistent Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 75d58430 2008-12-18T22:56:14 Add a file reading routine along with an io buffer type In particular, the gitfo_read_file() routine can be used to slurp the complete file contents into an gitfo_buf structure. The buffer content will be allocated by malloc() and may be released by the gitfo_free_buf() routine. The io buffer type can be initialised on the stack with the GITFO_BUF_INIT macro. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 5ee2fe77 2008-12-03T23:53:55 Add a GIT_PATH_MAX constant The PATH_MAX symbol is often, but not always, defined in the <limits.h> header. In particular, on cygwin you need to include this header to avoid a compilation error. However, some systems define PATH_MAX to be something as small as 256, which POSIX is happy to allow, while others allow much larger values. In general it can vary from one filesystem to another. In order to avoid the vagaries of different systems, define our own symbol. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Andreas Ericsson ae234862 2008-11-18T22:20:15 Add an embryo of a TLS-aware error handling system This adds the per-thread global variable git_errno to the system, which callers can examine to get information about an error. Two helper functions are added to reduce LoC-count for the library code itself. Also, some exceptions are made for running sparse on GIT_TLS definitions, since it doesn't grok thread-local variables at all. Signed-off-by: Andreas Ericsson <ae@op5.se> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Andreas Ericsson 76a8c447 2008-11-22T14:42:12 Add internal common.h file This one pulls in compiler compatibility macros, some common header files, and also the public common.h header. C source files are modified to use the private common.h in favour of the public one. Signed-off-by: Andreas Ericsson <ae@op5.se> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Andreas Ericsson 3a2aabdc 2008-11-22T14:44:47 Add util.h - utility macros ARRAY_SIZE() et al go in util.h, included from common.h Signed-off-by: Andreas Ericsson <ae@op5.se> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>