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Diffstat (limited to 'erts/emulator/drivers/unix/unix_efile.c')
-rw-r--r--erts/emulator/drivers/unix/unix_efile.c83
1 files changed, 59 insertions, 24 deletions
diff --git a/erts/emulator/drivers/unix/unix_efile.c b/erts/emulator/drivers/unix/unix_efile.c
index 55539b44dd..bfe0807df8 100644
--- a/erts/emulator/drivers/unix/unix_efile.c
+++ b/erts/emulator/drivers/unix/unix_efile.c
@@ -1,18 +1,19 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1997-2013. All Rights Reserved.
+ * Copyright Ericsson AB 1997-2016. All Rights Reserved.
*
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
*
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
* %CopyrightEnd%
*/
@@ -38,16 +39,21 @@
#ifdef HAVE_SYS_UIO_H
#include <sys/types.h>
#include <sys/uio.h>
+#if defined(HAVE_SENDFILE) && (defined(__FreeBSD__) || defined(__DragonFly__))
+/* Need to define __BSD_VISIBLE in order to expose prototype of sendfile */
+#define __BSD_VISIBLE 1
+#include <sys/socket.h>
+#endif
#endif
#if defined(HAVE_SENDFILE) && (defined(__linux__) || (defined(__sun) && defined(__SVR4)))
#include <sys/sendfile.h>
#endif
#if defined(__APPLE__) && defined(__MACH__) && !defined(__DARWIN__)
-#define DARWIN 1
+#define __DARWIN__ 1
#endif
-#if defined(DARWIN) || defined(HAVE_LINUX_FALLOC_H) || defined(HAVE_POSIX_FALLOCATE)
+#if defined(__DARWIN__) || defined(HAVE_LINUX_FALLOC_H) || defined(HAVE_POSIX_FALLOCATE)
#include <fcntl.h>
#endif
@@ -102,6 +108,11 @@ check_error(int result, Efile_error *errInfo)
}
int
+efile_init() {
+ return 1;
+}
+
+int
efile_mkdir(Efile_error* errInfo, /* Where to return error codes. */
char* name) /* Name of directory to create. */
{
@@ -355,7 +366,12 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */
int fd;
int mode; /* Open mode. */
- if (stat(name, &statbuf) >= 0 && !ISREG(statbuf)) {
+ if (stat(name, &statbuf) < 0) {
+ /* statbuf is undefined: if the caller depends on it,
+ i.e. invoke_read_file(), fail the call immediately */
+ if (pSize && flags == EFILE_MODE_READ)
+ return check_error(-1, errInfo);
+ } else if (!ISREG(statbuf)) {
/*
* For UNIX only, here is some ugly code to allow
* /dev/null to be opened as a file.
@@ -405,6 +421,15 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */
mode |= O_EXCL;
}
+ if (flags & EFILE_MODE_SYNC) {
+#ifdef O_SYNC
+ mode |= O_SYNC;
+#else
+ errno = ENOTSUP;
+ return check_error(-1, errInfo);
+#endif
+ }
+
fd = open(name, mode, FILE_MODE);
if (!check_error(fd, errInfo))
@@ -442,7 +467,7 @@ int
efile_fdatasync(Efile_error *errInfo, /* Where to return error codes. */
int fd) /* File descriptor for file to sync data. */
{
-#ifdef HAVE_FDATASYNC
+#if defined(HAVE_FDATASYNC) && !defined(__DARWIN__)
return check_error(fdatasync(fd), errInfo);
#else
return efile_fsync(errInfo, fd);
@@ -456,11 +481,11 @@ efile_fsync(Efile_error *errInfo, /* Where to return error codes. */
#ifdef NO_FSYNC
undefined fsync /* XXX: Really? */
#else
-#if defined(DARWIN) && defined(F_FULLFSYNC)
+#if defined(__DARWIN__) && defined(F_FULLFSYNC)
return check_error(fcntl(fd, F_FULLFSYNC), errInfo);
#else
return check_error(fsync(fd), errInfo);
-#endif /* DARWIN */
+#endif /* __DARWIN__ */
#endif /* NO_FSYNC */
}
@@ -512,9 +537,9 @@ efile_fileinfo(Efile_error* errInfo, Efile_info* pInfo,
else
pInfo->type = FT_OTHER;
- pInfo->accessTime = statbuf.st_atime;
- pInfo->modifyTime = statbuf.st_mtime;
- pInfo->cTime = statbuf.st_ctime;
+ pInfo->accessTime = (Sint64)statbuf.st_atime;
+ pInfo->modifyTime = (Sint64)statbuf.st_mtime;
+ pInfo->cTime = (Sint64)statbuf.st_ctime;
pInfo->mode = statbuf.st_mode;
pInfo->links = statbuf.st_nlink;
@@ -553,8 +578,8 @@ efile_write_info(Efile_error *errInfo, Efile_info *pInfo, char *name)
}
}
- tval.actime = pInfo->accessTime;
- tval.modtime = pInfo->modifyTime;
+ tval.actime = (time_t)pInfo->accessTime;
+ tval.modtime = (time_t)pInfo->modifyTime;
return check_error(utime(name, &tval), errInfo);
}
@@ -613,14 +638,24 @@ efile_writev(Efile_error* errInfo, /* Where to return error codes */
do {
w = writev(fd, &iov[cnt], b);
} while (w < 0 && errno == EINTR);
+ if (w < 0 && errno == EINVAL) {
+ goto single_write;
+ }
} else
+ single_write:
/* Degenerated io vector - use regular write */
#endif
{
do {
- w = write(fd, iov[cnt].iov_base, iov[cnt].iov_len);
+ size_t iov_len = iov[cnt].iov_len;
+ size_t limit = 1024*1024*1024; /* 1GB */
+ if (iov_len > limit) {
+ iov_len = limit;
+ }
+ w = write(fd, iov[cnt].iov_base, iov_len);
} while (w < 0 && errno == EINTR);
- ASSERT(w <= iov[cnt].iov_len);
+ ASSERT(w <= iov[cnt].iov_len ||
+ (w == -1 && errno != EINTR));
}
if (w < 0) return check_error(-1, errInfo);
/* Move forward to next buffer to write */
@@ -941,7 +976,7 @@ efile_sendfile(Efile_error* errInfo, int in_fd, int out_fd,
retval = len;
}
} while (len == SENDFILE_CHUNK_SIZE);
-#elif defined(DARWIN)
+#elif defined(__DARWIN__)
int retval;
off_t len;
do {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 09:38:35 +0000