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nic: log errors in base-linux nic_drv

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Christian Helmuth 2014-06-04 16:40:35 +02:00 committed by Norman Feske
parent 7abc1733c5
commit 6f58cdffb6
1 changed files with 6 additions and 1 deletions
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7
repos/os/src/drivers/nic/linux/main.cc
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@ -30,6 +30,7 @@
#include <nic/xml_node.h> #include <nic/xml_node.h>
/* Linux */ /* Linux */
#include <errno.h>
#include <unistd.h> #include <unistd.h>
#include <fcntl.h> #include <fcntl.h>
#include <sys/ioctl.h> #include <sys/ioctl.h>
@ -152,7 +153,10 @@ class Linux_driver : public Nic::Driver
int ret; int ret;
/* blocking-write packet to TAP */ /* blocking-write packet to TAP */
do { ret = write(_tap_fd, packet, size); } while (ret < 0); do {
ret = write(_tap_fd, packet, size);
if (ret < 0) PERR("write: errno=%d", errno);
} while (ret < 0);
} }
@ -167,6 +171,7 @@ class Linux_driver : public Nic::Driver
/* blocking read incoming packet */ /* blocking read incoming packet */
do { do {
ret = read(_tap_fd, _packet_buffer, sizeof(_packet_buffer)); ret = read(_tap_fd, _packet_buffer, sizeof(_packet_buffer));
if (ret < 0) PERR("read: errno=%d", errno);
} while (ret < 0); } while (ret < 0);
void *buffer = _alloc.alloc(ret); void *buffer = _alloc.alloc(ret);