From 5ba1cb20fe6f6699cef1cc726718e760cd4c9af1 Mon Sep 17 00:00:00 2001
From: Martin Lucina <martin@lucina.net>
Date: Mon, 23 Jan 2012 08:53:25 +0100
Subject: Imported Upstream version 2.0.9.dfsg

---
 src/zmq.cpp | 113 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)

(limited to 'src/zmq.cpp')

diff --git a/src/zmq.cpp b/src/zmq.cpp
index c8f419a..f3ccaac 100644
--- a/src/zmq.cpp
+++ b/src/zmq.cpp
@@ -18,6 +18,7 @@
 */
 
 #include "../include/zmq.h"
+#include "../include/zmq_utils.h"
 
 #include <string.h>
 #include <errno.h>
@@ -271,6 +272,11 @@ void *zmq_init (int io_threads_)
 
 int zmq_term (void *ctx_)
 {
+    if (!ctx_) {
+        errno = EFAULT;
+        return -1;
+    }
+
     int rc = ((zmq::ctx_t*) ctx_)->term ();
     int en = errno;
 
@@ -286,11 +292,19 @@ int zmq_term (void *ctx_)
 
 void *zmq_socket (void *ctx_, int type_)
 {
+    if (!ctx_) {
+        errno = EFAULT;
+        return NULL;
+    }
     return (void*) (((zmq::ctx_t*) ctx_)->create_socket (type_));
 }
 
 int zmq_close (void *s_)
 {
+    if (!s_) {
+        errno = EFAULT;
+        return -1;
+    }
     ((zmq::socket_base_t*) s_)->close ();
     return 0;
 }
@@ -298,33 +312,57 @@ int zmq_close (void *s_)
 int zmq_setsockopt (void *s_, int option_, const void *optval_,
     size_t optvallen_)
 {
+    if (!s_) {
+        errno = EFAULT;
+        return -1;
+    }
     return (((zmq::socket_base_t*) s_)->setsockopt (option_, optval_,
         optvallen_));
 }
 
 int zmq_getsockopt (void *s_, int option_, void *optval_, size_t *optvallen_)
 {
+    if (!s_) {
+        errno = EFAULT;
+        return -1;
+    }
     return (((zmq::socket_base_t*) s_)->getsockopt (option_, optval_,
         optvallen_));
 }
 
 int zmq_bind (void *s_, const char *addr_)
 {
+    if (!s_) {
+        errno = EFAULT;
+        return -1;
+    }
     return (((zmq::socket_base_t*) s_)->bind (addr_));
 }
 
 int zmq_connect (void *s_, const char *addr_)
 {
+    if (!s_) {
+        errno = EFAULT;
+        return -1;
+    }
     return (((zmq::socket_base_t*) s_)->connect (addr_));
 }
 
 int zmq_send (void *s_, zmq_msg_t *msg_, int flags_)
 {
+    if (!s_) {
+        errno = EFAULT;
+        return -1;
+    }
     return (((zmq::socket_base_t*) s_)->send (msg_, flags_));
 }
 
 int zmq_recv (void *s_, zmq_msg_t *msg_, int flags_)
 {
+    if (!s_) {
+        errno = EFAULT;
+        return -1;
+    }
     return (((zmq::socket_base_t*) s_)->recv (msg_, flags_));
 }
 
@@ -336,6 +374,10 @@ int zmq_poll (zmq_pollitem_t *items_, int nitems_, long timeout_)
     defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_AIX ||\
     defined ZMQ_HAVE_NETBSD
 
+    if (!items_) {
+        errno = EFAULT;
+        return -1;
+    }
     pollfd *pollfds = (pollfd*) malloc (nitems_ * sizeof (pollfd));
     zmq_assert (pollfds);
     int npollfds = 0;
@@ -489,6 +531,10 @@ int zmq_poll (zmq_pollitem_t *items_, int nitems_, long timeout_)
     zmq::fd_t maxfd = zmq::retired_fd;
     zmq::fd_t notify_fd = zmq::retired_fd;
 
+    //  Ensure we do not attempt to select () on more than FD_SETSIZE
+    //  file descriptors.
+    zmq_assert (nitems_ <= FD_SETSIZE);
+
     for (int i = 0; i != nitems_; i++) {
 
         //  0MQ sockets.
@@ -647,6 +693,10 @@ int zmq_errno ()
 
 int zmq_device (int device_, void *insocket_, void *outsocket_)
 {
+    if (!insocket_ || !outsocket_) {
+        errno = EFAULT;
+        return -1;
+    }
     switch (device_) {
     case ZMQ_FORWARDER:
         return zmq::forwarder ((zmq::socket_base_t*) insocket_,
@@ -661,3 +711,66 @@ int zmq_device (int device_, void *insocket_, void *outsocket_)
         return EINVAL;
     }
 }
+
+////////////////////////////////////////////////////////////////////////////////
+//  0MQ utils - to be used by perf tests
+////////////////////////////////////////////////////////////////////////////////
+
+#if defined ZMQ_HAVE_WINDOWS
+
+static uint64_t now ()
+{    
+    //  Get the high resolution counter's accuracy.
+    LARGE_INTEGER ticksPerSecond;
+    QueryPerformanceFrequency (&ticksPerSecond);
+
+    //  What time is it?
+    LARGE_INTEGER tick;
+    QueryPerformanceCounter (&tick);
+
+    //  Convert the tick number into the number of seconds
+    //  since the system was started.
+    double ticks_div = (double) (ticksPerSecond.QuadPart / 1000000);     
+    return (uint64_t) (tick.QuadPart / ticks_div);
+}
+
+void zmq_sleep (int seconds_)
+{
+    Sleep (seconds_ * 1000);
+}
+
+#else
+
+static uint64_t now ()
+{
+    struct timeval tv;
+    int rc;
+
+    rc = gettimeofday (&tv, NULL);
+    assert (rc == 0);
+    return (tv.tv_sec * (uint64_t) 1000000 + tv.tv_usec);
+}
+
+void zmq_sleep (int seconds_)
+{
+    sleep (seconds_);
+}
+
+#endif
+
+void *zmq_stopwatch_start ()
+{
+    uint64_t *watch = (uint64_t*) malloc (sizeof (uint64_t));
+    assert (watch);
+    *watch = now ();
+    return (void*) watch;
+}
+
+unsigned long zmq_stopwatch_stop (void *watch_)
+{
+    uint64_t end = now ();
+    uint64_t start = *(uint64_t*) watch_;
+    free (watch_);
+    return (unsigned long) (end - start);
+}
+
-- 
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