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patch 8.0.1305: writefile() never calls fsync()

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Problem:    Writefile() never calls fsync().
Solution:   Follow the 'fsync' option with override to enable or disable.
This commit is contained in:
Bram Moolenaar
2017-11-16 23:04:15 +01:00
parent d048009717
commit 7567d0b115
6 changed files with 38 additions and 4 deletions
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13
src/evalfunc.c
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@@ -13348,6 +13348,9 @@ f_writefile(typval_T *argvars, typval_T *rettv)
{
int binary = FALSE;
int append = FALSE;
#ifdef HAVE_FSYNC
int do_fsync = p_fs;
#endif
char_u *fname;
FILE *fd;
int ret = 0;
@@ -13380,6 +13383,12 @@ f_writefile(typval_T *argvars, typval_T *rettv)
binary = TRUE;
if (vim_strchr(arg2, 'a') != NULL)
append = TRUE;
#ifdef HAVE_FSYNC
if (vim_strchr(arg2, 's') != NULL)
do_fsync = TRUE;
else if (vim_strchr(arg2, 'S') != NULL)
do_fsync = FALSE;
#endif
}
fname = get_tv_string_chk(&argvars[1]);
@@ -13398,6 +13407,10 @@ f_writefile(typval_T *argvars, typval_T *rettv)
{
if (write_list(fd, list, binary) == FAIL)
ret = -1;
#ifdef HAVE_FSYNC
else if (do_fsync && fsync(fileno(fd)) != 0)
EMSG(_(e_fsync));
#endif
fclose(fd);
}