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Add printf method to the File Buffer

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Signed-off-by: Vicent Marti <tanoku@gmail.com>
This commit is contained in:
Vicent Marti 2011-02-22 14:58:54 +02:00
parent af774b012c
commit 5591ea15a5
2 changed files with 26 additions and 0 deletions
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25
src/filebuf.c
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@ -22,6 +22,7 @@
* the Free Software Foundation, 51 Franklin Street, Fifth Floor, * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA. * Boston, MA 02110-1301, USA.
*/ */
#include <stdarg.h>
#include "common.h" #include "common.h"
#include "filebuf.h" #include "filebuf.h"
@ -259,3 +260,27 @@ int git_filebuf_reserve(git_filebuf *file, void **buffer, size_t len)
return GIT_SUCCESS; return GIT_SUCCESS;
} }
int git_filebuf_printf(git_filebuf *file, const char *format, ...)
{
va_list arglist;
size_t space_left = file->buf_size - file->buf_pos;
int len, error;
va_start(arglist, format);
len = vsnprintf((char *)file->buffer + file->buf_pos, space_left, format, arglist);
if (len < 0 || (size_t)len >= space_left) {
if ((error = flush_buffer(file)) < GIT_SUCCESS)
return error;
len = vsnprintf((char *)file->buffer + file->buf_pos, space_left, format, arglist);
if (len < 0 || (size_t)len > file->buf_size)
return GIT_ENOMEM;
}
file->buf_pos += len;
return GIT_SUCCESS;
}

1
src/filebuf.h
View File

@ -31,6 +31,7 @@ typedef struct git_filebuf git_filebuf;
int git_filebuf_write(git_filebuf *lock, void *buff, size_t len); int git_filebuf_write(git_filebuf *lock, void *buff, size_t len);
int git_filebuf_reserve(git_filebuf *file, void **buff, size_t len); int git_filebuf_reserve(git_filebuf *file, void **buff, size_t len);
int git_filebuf_printf(git_filebuf *file, const char *format, ...);
int git_filebuf_open(git_filebuf *lock, const char *path, int flags); int git_filebuf_open(git_filebuf *lock, const char *path, int flags);
int git_filebuf_commit(git_filebuf *lock); int git_filebuf_commit(git_filebuf *lock);