diff options
| -rw-r--r-- | src/estream.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/src/estream.c b/src/estream.c index 17d599f..755896c 100644 --- a/src/estream.c +++ b/src/estream.c @@ -1950,7 +1950,8 @@ func_file_create (void **cookie, int *filedes, #ifdef HAVE_W32_SYSTEM static int func_file_create_w32 (void **cookie, HANDLE *rethd, const char *path, - unsigned int modeflags, unsigned int cmode) + unsigned int modeflags, unsigned int cmode, + unsigned int flags_and_attrs) { estream_cookie_w32_t hd_cookie; wchar_t *wpath = NULL; @@ -2015,7 +2016,7 @@ func_file_create_w32 (void **cookie, HANDLE *rethd, const char *path, share_mode, NULL, /* security attributes */ creation_distribution, - 0, /* flags and attributes */ + flags_and_attrs, NULL); /* template file */ if (hd == INVALID_HANDLE_VALUE) { @@ -2044,6 +2045,7 @@ func_file_create_w32 (void **cookie, HANDLE *rethd, const char *path, #define X_SAMETHREAD (1 << 0) #define X_SYSOPEN (1 << 1) #define X_POLLABLE (1 << 2) +#define X_SEQUENTIAL (1 << 3) /* Parse the mode flags of fopen et al. In addition to the POSIX * defined mode flags keyword parameters are supported. These are @@ -2090,6 +2092,11 @@ func_file_create_w32 (void **cookie, HANDLE *rethd, const char *path, * threads, one for reading and one for writing, do any I/O there, * and synchronize with them in order to support es_poll. * + * sequential + * + * Indicate that the file will in general be access in sequential + * way. On Windows FILE_FLAG_SEQUENTIAL_SCAN will thus be used. + * * Note: R_CMODE is optional because is only required by functions * which are able to creat a file. */ @@ -2220,6 +2227,16 @@ parse_mode (const char *modestr, } *r_xmode |= X_POLLABLE; } + else if (!strncmp (modestr, "sequential", 10)) + { + modestr += 10; + if (*modestr && !strchr (" \t,", *modestr)) + { + _set_errno (EINVAL); + return -1; + } + *r_xmode |= X_SEQUENTIAL; + } } if (!got_cmode) cmode = (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH); @@ -3529,11 +3546,15 @@ _gpgrt_fopen (const char *_GPGRT__RESTRICT path, #ifdef HAVE_W32_SYSTEM if ((xmode & X_SYSOPEN)) { + unsigned int flagsattrs = 0; + kind = BACKEND_W32; functions = &estream_functions_w32; syshd.type = ES_SYSHD_HANDLE; + if ((xmode & X_SEQUENTIAL)) + flagsattrs |= FILE_FLAG_SEQUENTIAL_SCAN; err = func_file_create_w32 (&cookie, &syshd.u.handle, - path, modeflags, cmode); + path, modeflags, cmode, flagsattrs); } else #endif /* W32 */ |