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-rw-r--r--erts/emulator/drivers/unix/mem_drv.c145
-rw-r--r--erts/emulator/drivers/unix/unix_efile.c37
2 files changed, 32 insertions, 150 deletions
diff --git a/erts/emulator/drivers/unix/mem_drv.c b/erts/emulator/drivers/unix/mem_drv.c
deleted file mode 100644
index 1417ca1121..0000000000
--- a/erts/emulator/drivers/unix/mem_drv.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 1996-2009. 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/.
- *
- * 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.
- *
- * %CopyrightEnd%
- */
-
-/* Purpose: Access to elib memory statistics */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include "sys.h"
-#include "erl_driver.h"
-#include "elib_stat.h"
-
-#define MAP_BUF_SIZE 1000 /* Max map size */
-#define HISTO_BUF_SIZE 100 /* Max histogram buckets */
-
-static ErlDrvData mem_start(ErlDrvPort);
-static int mem_init(void);
-static void mem_stop(ErlDrvData);
-static void mem_command(ErlDrvData, char*, int);
-
-const struct driver_entry mem_driver_entry = {
- mem_init,
- mem_start,
- mem_stop,
- mem_command,
- NULL,
- NULL,
- "mem_drv"
-};
-
-static int mem_init(void)
-{
- return 0;
-}
-
-static ErlDrvData mem_start(ErlDrvPort port, char* buf)
-{
- return (ErlDrvData)port;
-}
-
-static void mem_stop(ErlDrvData port)
-{
-}
-
-void putint32(p, v)
-byte* p; int v;
-{
- p[0] = (v >> 24) & 0xff;
- p[1] = (v >> 16) & 0xff;
- p[2] = (v >> 8) & 0xff;
- p[3] = (v) & 0xff;
-}
-
-int getint16(p)
-byte* p;
-{
- return (p[0] << 8) | p[1];
-}
-
-/*
-** Command:
-** m L1 L0 -> a heap map of length L1*256 + L0 is returned
-** s -> X3 X2 X1 X0 Y3 Y2 Y1 Y0 Z3 Z2 Z1 Z0
-** X == Total heap size bytes
-** Y == Total free bytes
-** Z == Size of largest free block in bytes
-**
-** h L1 L0 B0 -> Generate a logarithm historgram base B with L buckets
-** l L1 L0 S0 -> Generate a linear histogram with step S with L buckets
-*/
-unsigned char outbuf[HISTO_BUF_SIZE*2*4];
-
-static void mem_command(ErlDrvData port, char* buf, int count)
-{
- if ((count == 1) && buf[0] == 's') {
- struct elib_stat info;
- char v[3*4];
-
- elib_stat(&info);
-
- putint32(v, info.mem_total*4);
- putint32(v+4, info.mem_free*4);
- putint32(v+8, info.max_free*4);
- driver_output((ErlDrvPort)port, v, 12);
- return;
- }
- else if ((count == 3) && buf[0] == 'm') {
- char w[MAP_BUF_SIZE];
- int n = getint16(buf+1);
-
- if (n > MAP_BUF_SIZE)
- n = MAP_BUF_SIZE;
- elib_heap_map(w, n);
- driver_output((ErlDrvPort)port, w, n);
- return;
- }
- else if ((count == 4) && (buf[0] == 'h' || buf[0] == 'l')) {
- unsigned long vf[HISTO_BUF_SIZE];
- unsigned long va[HISTO_BUF_SIZE];
- int n = getint16(buf+1);
- int base = (unsigned char) buf[3];
-
- if (n >= HISTO_BUF_SIZE)
- n = HISTO_BUF_SIZE;
- if (buf[0] == 'l')
- base = -base;
- if (elib_histo(vf, va, n, base) < 0) {
- driver_failure((ErlDrvPort)port, -1);
- return;
- }
- else {
- char* p = outbuf;
- int i;
-
- for (i = 0; i < n; i++) {
- putint32(p, vf[i]);
- p += 4;
- }
- for (i = 0; i < n; i++) {
- putint32(p, va[i]);
- p += 4;
- }
- driver_output((ErlDrvPort)port, outbuf, n*8);
- }
- return;
- }
- driver_failure((ErlDrvPort)port, -1);
-}
diff --git a/erts/emulator/drivers/unix/unix_efile.c b/erts/emulator/drivers/unix/unix_efile.c
index 1d094ee613..4b3934657c 100644
--- a/erts/emulator/drivers/unix/unix_efile.c
+++ b/erts/emulator/drivers/unix/unix_efile.c
@@ -98,7 +98,7 @@ extern STATUS copy(char *, char *);
#define EF_SAFE_REALLOC(P, S) ef_safe_realloc((P), (S))
#define EF_FREE(P) do { if((P)) driver_free((P)); } while(0)
-extern void erl_exit(int n, char *fmt, _DOTS_);
+void erl_exit(int n, char *fmt, ...);
static void *ef_safe_alloc(Uint s)
{
@@ -127,7 +127,7 @@ static void *ef_safe_realloc(void *op, Uint s)
(s[0] == '.' && (s[1] == '\0' || (s[1] == '.' && s[2] == '\0')))
#ifdef VXWORKS
-static FUNCTION(int, vxworks_to_posix, (int vx_errno));
+static int vxworks_to_posix(int vx_errno);
#endif
/*
@@ -146,7 +146,7 @@ static FUNCTION(int, vxworks_to_posix, (int vx_errno));
#define CHECK_PATHLEN(X,Y) /* Nothing */
#endif
-static FUNCTION(int, check_error, (int result, Efile_error* errInfo));
+static int check_error(int result, Efile_error* errInfo);
static int
check_error(int result, Efile_error *errInfo)
@@ -587,7 +587,8 @@ efile_readdir(Efile_error* errInfo, /* Where to return error codes. */
open directory.*/
char* buffer, /* Pointer to buffer for
one filename. */
- size_t size) /* Size of buffer. */
+ size_t *size) /* in-out Size of buffer, length
+ of name. */
{
DIR *dp; /* Pointer to directory structure. */
struct dirent* dirp; /* Pointer to directory entry. */
@@ -619,7 +620,8 @@ efile_readdir(Efile_error* errInfo, /* Where to return error codes. */
if (IS_DOT_OR_DOTDOT(dirp->d_name))
continue;
buffer[0] = '\0';
- strncat(buffer, dirp->d_name, size-1);
+ strncat(buffer, dirp->d_name, (*size)-1);
+ *size = strlen(dirp->d_name);
return 1;
}
}
@@ -706,6 +708,9 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */
#endif
}
+ if (flags & EFILE_MODE_EXCL) {
+ mode |= O_EXCL;
+ }
#ifdef VXWORKS
if (*name != '/') {
@@ -774,6 +779,17 @@ efile_closefile(int fd)
}
int
+efile_fdatasync(Efile_error *errInfo, /* Where to return error codes. */
+ int fd) /* File descriptor for file to sync data. */
+{
+#ifdef HAVE_FDATASYNC
+ return check_error(fdatasync(fd), errInfo);
+#else
+ return efile_fsync(errInfo, fd);
+#endif
+}
+
+int
efile_fsync(Efile_error *errInfo, /* Where to return error codes. */
int fd) /* File descriptor for file to sync. */
{
@@ -1437,3 +1453,14 @@ efile_symlink(Efile_error* errInfo, char* old, char* new)
return check_error(symlink(old, new), errInfo);
#endif
}
+
+int
+efile_fadvise(Efile_error* errInfo, int fd, Sint64 offset,
+ Sint64 length, int advise)
+{
+#ifdef HAVE_POSIX_FADVISE
+ return check_error(posix_fadvise(fd, offset, length, advise), errInfo);
+#else
+ return check_error(0, errInfo);
+#endif
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-29 19:10:40 +0000