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authorPatrik Nyblom <[email protected]>2012-12-20 12:06:30 +0100
committerPatrik Nyblom <[email protected]>2013-01-23 16:03:10 +0100
commitf35faaba1b2e197731bd844de4baabe1ac836f56 (patch)
tree0e2d3e183eb18cf79f2732fd2480cedaf9e923c9
parentc17dad5598bbee6773b87d2fd3c3cb7625ba5048 (diff)
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Make _oct counters in inet_drv exactly 64 bits
Also, on 64 bit architectures, use 64 bit int's for the counters and be specific about the counter variables sizes utilizing datatypes from sys.h.
-rw-r--r--erts/emulator/drivers/common/inet_drv.c49
1 files changed, 42 insertions, 7 deletions
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index c284a8aa86..f0c22e9ebe 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -933,12 +933,20 @@ typedef struct {
int bufsz; /* minimum buffer constraint */
unsigned int hsz; /* the list header size, -1 is large !!! */
/* statistics */
- unsigned long recv_oct[2]; /* number of received octets >= 64 bits */
+#ifdef ARCH_64
+ Uint64 recv_oct; /* number of received octets, 64 bits */
+#else
+ Uint32 recv_oct[2]; /* number of received octets, 64 bits */
+#endif
unsigned long recv_cnt; /* number of packets received */
unsigned long recv_max; /* maximum packet size received */
double recv_avg; /* average packet size received */
double recv_dvi; /* avarage deviation from avg_size */
- unsigned long send_oct[2]; /* number of octets sent >= 64 bits */
+#ifdef ARCH_64
+ Uint64 send_oct; /* number of octets sent, 64 bits */
+#else
+ Uint32 send_oct[2]; /* number of octets sent, 64 bits */
+#endif
unsigned long send_cnt; /* number of packets sent */
unsigned long send_max; /* maximum packet send */
double send_avg; /* average packet size sent */
@@ -7377,13 +7385,21 @@ static ErlDrvSSizeT inet_fill_stat(inet_descriptor* desc,
val = (unsigned long) driver_sizeq(desc->port);
break;
case INET_STAT_RECV_OCT:
+#ifdef ARCH_64
+ put_int64(desc->recv_oct, dst); /* write it all */
+#else
put_int32(desc->recv_oct[1], dst); /* write high 32bit */
put_int32(desc->recv_oct[0], dst+4); /* write low 32bit */
+#endif
dst += 8;
continue;
case INET_STAT_SEND_OCT:
+#ifdef ARCH_64
+ put_int64(desc->send_oct, dst); /* write it all */
+#else
put_int32(desc->send_oct[1], dst); /* write high 32bit */
put_int32(desc->send_oct[0], dst+4); /* write low 32bit */
+#endif
dst += 8;
continue;
default: return -1; /* invalid argument */
@@ -7491,12 +7507,20 @@ static ErlDrvData inet_start(ErlDrvPort port, int size, int protocol)
desc->peer_ptr = NULL;
desc->name_ptr = NULL;
+#ifdef ARCH_64
+ desc->recv_oct = 0;
+#else
desc->recv_oct[0] = desc->recv_oct[1] = 0;
+#endif
desc->recv_cnt = 0;
desc->recv_max = 0;
desc->recv_avg = 0.0;
desc->recv_dvi = 0.0;
+#ifdef ARCH_64
+ desc->send_oct = 0;
+#else
desc->send_oct[0] = desc->send_oct[1] = 0;
+#endif
desc->send_cnt = 0;
desc->send_max = 0;
desc->send_avg = 0.0;
@@ -7885,14 +7909,19 @@ static ErlDrvSSizeT inet_ctl(inet_descriptor* desc, int cmd, char* buf,
static void inet_output_count(inet_descriptor* desc, ErlDrvSizeT len)
{
unsigned long n = desc->send_cnt + 1;
- unsigned long t = (desc->send_oct[0] + len) & 0xFFFFFFFFUL;
+#ifndef ARCH_64
+ Uint32 t = desc->send_oct[0] + len;
int c = (t < desc->send_oct[0]);
+#endif
double avg = desc->send_avg;
- /* at least 64 bit octet count */
+#ifdef ARCH_64
+ desc->send_oct += len;
+#else
+ /* 64 bit octet count in 32 bit words */
desc->send_oct[0] = t;
desc->send_oct[1] += c;
-
+#endif
if (n == 0) /* WRAP, use old avg as input to a new sequence */
n = 1;
desc->send_avg += (len - avg) / n;
@@ -7905,14 +7934,20 @@ static void inet_output_count(inet_descriptor* desc, ErlDrvSizeT len)
static void inet_input_count(inet_descriptor* desc, ErlDrvSizeT len)
{
unsigned long n = desc->recv_cnt + 1;
- unsigned long t = (desc->recv_oct[0] + len) & 0xFFFFFFFFUL;
+#ifndef ARCH_64
+ Uint32 t = (desc->recv_oct[0] + len);
int c = (t < desc->recv_oct[0]);
+#endif
double avg = desc->recv_avg;
double dvi;
- /* at least 64 bit octet count */
+#ifdef ARCH_64
+ desc->recv_oct += len;
+#else
+ /* 64 bit octet count in 32 bit words */
desc->recv_oct[0] = t;
desc->recv_oct[1] += c;
+#endif
if (n == 0) /* WRAP */
n = 1;