aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/drivers/common/efile_drv.c
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator/drivers/common/efile_drv.c')
-rw-r--r--erts/emulator/drivers/common/efile_drv.c131
1 files changed, 80 insertions, 51 deletions
diff --git a/erts/emulator/drivers/common/efile_drv.c b/erts/emulator/drivers/common/efile_drv.c
index 595b0488a8..c997fe1bf9 100644
--- a/erts/emulator/drivers/common/efile_drv.c
+++ b/erts/emulator/drivers/common/efile_drv.c
@@ -546,53 +546,81 @@ static void *ef_safe_realloc(void *op, Uint s)
(((char *)(ev)->iov[(q)].iov_base) + (p))
/* int EV_GET_CHAR(ErlIOVec *ev, char *p, int *pp, int *qp) */
-#define EV_GET_CHAR(ev, p, pp, qp) \
- (*(pp)+1 <= (ev)->iov[*(qp)].iov_len \
- ? (*(p) = *EV_CHAR_P(ev, *(pp), *(qp)), \
- *(pp) = ( *(pp)+1 < (ev)->iov[*(qp)].iov_len \
- ? *(pp)+1 \
- : ((*(qp))++, 0)), \
- !0) \
- : 0)
+#define EV_GET_CHAR(ev, p, pp, qp) efile_ev_get_char(ev, p ,pp, qp)
+static int
+efile_ev_get_char(ErlIOVec *ev, char *p, int *pp, int *qp) {
+ if (*(pp)+1 <= (ev)->iov[*(qp)].iov_len) {
+ *(p) = *EV_CHAR_P(ev, *(pp), *(qp));
+ if (*(pp)+1 < (ev)->iov[*(qp)].iov_len)
+ *(pp) = *(pp)+1;
+ else {
+ (*(qp))++;
+ *pp = 0;
+ }
+ return !0;
+ }
+ return 0;
+}
/* Uint32 EV_UINT32(ErlIOVec *ev, int p, int q)*/
#define EV_UINT32(ev, p, q) \
((Uint32) *(((unsigned char *)(ev)->iov[(q)].iov_base) + (p)))
/* int EV_GET_UINT32(ErlIOVec *ev, Uint32 *p, int *pp, int *qp) */
-#define EV_GET_UINT32(ev, p, pp, qp) \
- (*(pp)+4 <= (ev)->iov[*(qp)].iov_len \
- ? (*(p) = (EV_UINT32(ev, *(pp), *(qp)) << 24) \
- | (EV_UINT32(ev, *(pp)+1, *(qp)) << 16) \
- | (EV_UINT32(ev, *(pp)+2, *(qp)) << 8) \
- | (EV_UINT32(ev, *(pp)+3, *(qp))), \
- *(pp) = ( *(pp)+4 < (ev)->iov[*(qp)].iov_len \
- ? *(pp)+4 \
- : ((*(qp))++, 0)), \
- !0) \
- : 0)
+#define EV_GET_UINT32(ev, p, pp, qp) efile_ev_get_uint32(ev,p,pp,qp)
+static int
+efile_ev_get_uint32(ErlIOVec *ev, Uint32 *p, int *pp, int *qp) {
+ if (*(pp)+4 <= (ev)->iov[*(qp)].iov_len) {
+ *(p) = (EV_UINT32(ev, *(pp), *(qp)) << 24)
+ | (EV_UINT32(ev, *(pp)+1, *(qp)) << 16)
+ | (EV_UINT32(ev, *(pp)+2, *(qp)) << 8)
+ | (EV_UINT32(ev, *(pp)+3, *(qp)));
+ if (*(pp)+4 < (ev)->iov[*(qp)].iov_len)
+ *(pp) = *(pp)+4;
+ else {
+ (*(qp))++;
+ *pp = 0;
+ }
+ return !0;
+ }
+ return 0;
+}
/* Uint64 EV_UINT64(ErlIOVec *ev, int p, int q)*/
#define EV_UINT64(ev, p, q) \
((Uint64) *(((unsigned char *)(ev)->iov[(q)].iov_base) + (p)))
-/* int EV_GET_UINT64(ErlIOVec *ev, Uint32 *p, int *pp, int *qp) */
-#define EV_GET_UINT64(ev, p, pp, qp) \
- (*(pp)+8 <= (ev)->iov[*(qp)].iov_len \
- ? (*(p) = (EV_UINT64(ev, *(pp), *(qp)) << 56) \
- | (EV_UINT64(ev, *(pp)+1, *(qp)) << 48) \
- | (EV_UINT64(ev, *(pp)+2, *(qp)) << 40) \
- | (EV_UINT64(ev, *(pp)+3, *(qp)) << 32) \
- | (EV_UINT64(ev, *(pp)+4, *(qp)) << 24) \
- | (EV_UINT64(ev, *(pp)+5, *(qp)) << 16) \
- | (EV_UINT64(ev, *(pp)+6, *(qp)) << 8) \
- | (EV_UINT64(ev, *(pp)+7, *(qp))), \
- *(pp) = ( *(pp)+8 < (ev)->iov[*(qp)].iov_len \
- ? *(pp)+8 \
- : ((*(qp))++, 0)), \
- !0) \
- : 0)
+/* int EV_GET_UINT64(ErlIOVec *ev, Uint64 *p, int *pp, int *qp) */
+#define EV_GET_UINT64(ev, p, pp, qp) efile_ev_get_uint64(ev,p,pp,qp)
+static int
+efile_ev_get_uint64(ErlIOVec *ev, Uint64 *p, int *pp, int *qp) {
+ if (*(pp)+8 <= (ev)->iov[*(qp)].iov_len) {
+ *(p) = (EV_UINT64(ev, *(pp), *(qp)) << 56)
+ | (EV_UINT64(ev, *(pp)+1, *(qp)) << 48)
+ | (EV_UINT64(ev, *(pp)+2, *(qp)) << 40)
+ | (EV_UINT64(ev, *(pp)+3, *(qp)) << 32)
+ | (EV_UINT64(ev, *(pp)+4, *(qp)) << 24)
+ | (EV_UINT64(ev, *(pp)+5, *(qp)) << 16)
+ | (EV_UINT64(ev, *(pp)+6, *(qp)) << 8)
+ | (EV_UINT64(ev, *(pp)+7, *(qp)));
+ if (*(pp)+8 < (ev)->iov[*(qp)].iov_len)
+ *(pp) = *(pp)+8;
+ else {
+ (*(qp))++;
+ *pp = 0;
+ }
+ return !0;
+ }
+ return 0;
+}
+/* int EV_GET_SINT64(ErlIOVec *ev, Uint64 *p, int *pp, int *qp) */
+#define EV_GET_SINT64(ev, p, pp, qp) efile_ev_get_sint64(ev,p,pp,qp)
+static int
+efile_ev_get_sint64(ErlIOVec *ev, Sint64 *p, int *pp, int *qp) {
+ Uint64 *tmp = (Uint64*)p;
+ return EV_GET_UINT64(ev,tmp,pp,qp);
+}
#if 0
@@ -744,6 +772,7 @@ file_init(void)
return 0;
}
+
/*********************************************************************
* Driver entry point -> start
*/
@@ -760,7 +789,7 @@ file_start(ErlDrvPort port, char* command)
}
desc->fd = FILE_FD_INVALID;
desc->port = port;
- desc->key = (unsigned int) (UWord) port;
+ desc->key = driver_async_port_key(port);
desc->flags = 0;
desc->invoke = NULL;
desc->d = NULL;
@@ -3105,25 +3134,25 @@ file_flush(ErlDrvData e) {
/*********************************************************************
* Driver entry point -> control
+ * Only debug functionality...
*/
static ErlDrvSSizeT
file_control(ErlDrvData e, unsigned int command,
char* buf, ErlDrvSizeT len, char **rbuf, ErlDrvSizeT rlen) {
- /*
- * warning: variable ‘desc’ set but not used
- * [-Wunused-but-set-variable]
- * ... no kidding ...
- *
- *
file_descriptor *desc = (file_descriptor *)e;
switch (command) {
+ case 'K' :
+ if (rlen < 4) {
+ *rbuf = EF_ALLOC(4);
+ }
+ (*rbuf)[0] = ((desc->key) >> 24) & 0xFF;
+ (*rbuf)[1] = ((desc->key) >> 16) & 0xFF;
+ (*rbuf)[2] = ((desc->key) >> 8) & 0xFF;
+ (*rbuf)[3] = (desc->key) & 0xFF;
+ return 4;
default:
return 0;
- }
- ASSERT(0);
- desc = NULL;
- */
- return 0;
+ }
}
/*********************************************************************
@@ -3604,7 +3633,7 @@ file_outputv(ErlDrvData e, ErlIOVec *ev) {
for(i = 0; i < n; i++) {
Uint32 sizeH, sizeL;
size_t size;
- if ( !EV_GET_UINT64(ev, &d->c.pwritev.specs[i].offset, &p, &q)
+ if ( !EV_GET_SINT64(ev, &d->c.pwritev.specs[i].offset, &p, &q)
|| !EV_GET_UINT32(ev, &sizeH, &p, &q)
|| !EV_GET_UINT32(ev, &sizeL, &p, &q)) {
/* Misalignment in buffer */
@@ -3746,7 +3775,7 @@ file_outputv(ErlDrvData e, ErlIOVec *ev) {
for (i = 1; i < 1+n; i++) {
Uint32 sizeH, sizeL;
size_t size;
- if ( !EV_GET_UINT64(ev, &d->c.preadv.offsets[i-1], &p, &q)
+ if ( !EV_GET_SINT64(ev, &d->c.preadv.offsets[i-1], &p, &q)
|| !EV_GET_UINT32(ev, &sizeH, &p, &q)
|| !EV_GET_UINT32(ev, &sizeL, &p, &q)) {
reply_posix_error(desc, EINVAL);
@@ -3814,7 +3843,7 @@ file_outputv(ErlDrvData e, ErlIOVec *ev) {
Uint32 origin; /* Origin of seek. */
if (ev->size < 1+8+4
- || !EV_GET_UINT64(ev, &offset, &p, &q)
+ || !EV_GET_SINT64(ev, &offset, &p, &q)
|| !EV_GET_UINT32(ev, &origin, &p, &q)) {
/* Wrong length of buffer to contain offset and origin */
reply_posix_error(desc, EINVAL);
@@ -3927,7 +3956,7 @@ file_outputv(ErlDrvData e, ErlIOVec *ev) {
goto done;
}
if (ev->size < 1+1+8+4
- || !EV_GET_UINT64(ev, &hdr_offset, &p, &q)
+ || !EV_GET_SINT64(ev, &hdr_offset, &p, &q)
|| !EV_GET_UINT32(ev, &max_size, &p, &q)) {
/* Buffer too short to contain
* the header offset and max size spec */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-23 16:46:11 +0000