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replcate truncate with ftruncate

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This commit is contained in:
Grigory Smolkin 2020-06-22 18:57:10 +03:00
parent cf99f6dc77
commit c3cc6a0447
1 changed files with 12 additions and 10 deletions
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22
src/data.c
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@ -1792,15 +1792,16 @@ get_checksum_map(const char *fullpath, uint32 checksum_version,
char read_buffer[BLCKSZ];
char in_buf[STDIO_BUFSIZE];
/* truncate up to blocks */
if (truncate(fullpath, n_blocks * BLCKSZ) != 0)
elog(ERROR, "Cannot truncate file to blknum %u \"%s\": %s",
n_blocks, fullpath, strerror(errno));
/* open file */
in = fopen(fullpath, PG_BINARY_R);
if (!in)
elog(ERROR, "Cannot open source file \"%s\": %s", fullpath, strerror(errno));
/* truncate up to blocks */
if (ftruncate(fileno(in), n_blocks * BLCKSZ) != 0)
elog(ERROR, "Cannot truncate file to blknum %u \"%s\": %s",
n_blocks, fullpath, strerror(errno));
setvbuf(in, in_buf, _IOFBF, STDIO_BUFSIZE);
/* initialize array of checksums */
@ -1860,17 +1861,18 @@ get_lsn_map(const char *fullpath, uint32 checksum_version,
char in_buf[STDIO_BUFSIZE];
datapagemap_t *lsn_map = NULL;
/* truncate up to blocks */
if (truncate(fullpath, n_blocks * BLCKSZ) != 0)
elog(ERROR, "Cannot truncate file to blknum %u \"%s\": %s",
n_blocks, fullpath, strerror(errno));
Assert(shift_lsn > 0);
/* open file */
in = fopen(fullpath, PG_BINARY_R);
if (!in)
elog(ERROR, "Cannot open source file \"%s\": %s", fullpath, strerror(errno));
/* truncate up to blocks */
if (ftruncate(fileno(in), n_blocks * BLCKSZ) != 0)
elog(ERROR, "Cannot truncate file to blknum %u \"%s\": %s",
n_blocks, fullpath, strerror(errno));
setvbuf(in, in_buf, _IOFBF, STDIO_BUFSIZE);
lsn_map = pgut_malloc(sizeof(datapagemap_t));