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Retry blocking writes.

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Ben Laurie
2013-09-08 06:11:18 +01:00
parent c37b9aed4c
commit 1b46a38559
1 changed files with 3 additions and 0 deletions
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sw/airborne/boards/ardrone/navdata.c
+3
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@@ -34,6 +34,7 @@
#include <unistd.h> #include <unistd.h>
#include <string.h> #include <string.h>
#include <math.h> #include <math.h>
#include <errno.h>
#include "navdata.h" #include "navdata.h"
#define NAVDATA_PACKET_SIZE 60 #define NAVDATA_PACKET_SIZE 60
@@ -61,6 +62,8 @@ static void navdata_write(const uint8_t *buf, size_t count)
ssize_t n = write(nav_fd, buf + written, count - written); ssize_t n = write(nav_fd, buf + written, count - written);
if (n < 0) if (n < 0)
{ {
if (errno == EAGAIN || errno == EWOULDBLOCK)
continue;
perror("navdata_write: Write failed"); perror("navdata_write: Write failed");
// FIXME: what's sensible to do at this point? // FIXME: what's sensible to do at this point?
return; return;