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31023be999
read_in_full()'s is used in compat/pread.c. read_in_full() is declared in cache.h. But we can't include cache.h because too many macros are defined there. Using read_in_full() without including cache.h is dangerous because we wouldn't recognize if its prototyp changed. gcc issues a warning about that. This commit adds a forward decl to git-compat-util.h. git-compat-util.h is included by compat/pread.c _and_ cache.h. Hence, changes in cache.h would be detected. Signed-off-by: Steffen Prohaska <prohaska@zib.de>
19 lines
433 B
C
19 lines
433 B
C
#include "../git-compat-util.h"
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ssize_t git_pread(int fd, void *buf, size_t count, off_t offset)
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{
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off_t current_offset;
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ssize_t rc;
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current_offset = lseek(fd, 0, SEEK_CUR);
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if (lseek(fd, offset, SEEK_SET) < 0)
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return -1;
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rc = read_in_full(fd, buf, count);
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if (current_offset != lseek(fd, current_offset, SEEK_SET))
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return -1;
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return rc;
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}
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