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[examples]更正tcp例程中recv/send返回值判断

This commit is contained in:
yangpeng 2023-12-26 16:24:40 +08:00 committed by Rbb666
parent 22b9de6f1d
commit fb8f1458d0
2 changed files with 32 additions and 16 deletions
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24
examples/network/tcpclient.c
View File

@ -10,6 +10,7 @@
#include <rtthread.h> #include <rtthread.h>
#include <string.h> #include <string.h>
#include <stdlib.h>
#if !defined(SAL_USING_POSIX) #if !defined(SAL_USING_POSIX)
#error "Please enable SAL_USING_POSIX!" #error "Please enable SAL_USING_POSIX!"
@ -114,15 +115,15 @@ static void tcpclient(void *arg)
{ {
/* Receive failed and close the connection */ /* Receive failed and close the connection */
/* 接收失败，关闭这个连接 */ /* 接收失败，关闭这个连接 */
LOG_E("Received error, close the socket."); LOG_E("Received error(%d), close the socket.", errno);
goto __exit; goto __exit;
} }
else if (bytes_received == 0) else if (bytes_received == 0)
{ {
/* Print warning message when recv function returns 0 */ /* Socket has performed an orderly shutdown. */
/* 打印recv函数返回值为0的警告信息 */ /* 连接已断开 */
LOG_W("Received warning, recv function returns 0."); LOG_E("Socket has performed an orderly shutdown.");
continue; goto __exit;
} }
else else
{ {
@ -151,14 +152,19 @@ static void tcpclient(void *arg)
{ {
/* Send failed, close the connection */ /* Send failed, close the connection */
/* 发送失败，关闭这个连接 */ /* 发送失败，关闭这个连接 */
LOG_I("send error, close the socket."); LOG_I("send error(%d), close the socket.", errno);
goto __exit; goto __exit;
} }
else if (ret == 0) else if (ret == 0)
{ {
/* Print warning message when send function returns 0 */ /* Socket has performed an orderly shutdown. */
/* 打印send函数返回值为0的警告信息 */ /* 连接已断开 */
LOG_W("Send warning, send function returns 0."); LOG_E("Socket has performed an orderly shutdown.");
goto __exit;
}
else if (ret != rt_strlen(send_data))
{
LOG_W("%d out of %d bytes sent.", ret, rt_strlen(send_data));
} }
} }

24
examples/network/tcpserver.c
View File

@ -10,6 +10,7 @@
#include <rtthread.h> #include <rtthread.h>
#include <string.h> #include <string.h>
#include <stdlib.h>
#if !defined(SAL_USING_POSIX) #if !defined(SAL_USING_POSIX)
#error "Please enable SAL_USING_POSIX!" #error "Please enable SAL_USING_POSIX!"
@ -139,10 +140,12 @@ static void tcpserv(void *arg)
} }
else if (bytes_received == 0) else if (bytes_received == 0)
{ {
/* Print warning message when recv function returns 0 */ /* Socket has performed an orderly shutdown */
/* 打印recv函数返回值为0的警告信息 */ /* 连接已断开 */
LOG_W("Received warning, recv function returns 0."); LOG_E("Socket has performed an orderly shutdown.");
continue; closesocket(connected);
connected = -1;
break;
} }
else else
{ /* Receive data successfully and append '\0' at the end of message */ { /* Receive data successfully and append '\0' at the end of message */
@ -184,9 +187,16 @@ static void tcpserv(void *arg)
} }
else if (ret == 0) else if (ret == 0)
{ {
/* Print warning message when send function returns 0 */ /* Socket has performed an orderly shutdown */
/* 打印send函数返回值为0的警告信息 */ /* 连接已断开 */
LOG_W("Send warning, send function returns 0."); LOG_E("Socket has performed an orderly shutdown.");
closesocket(connected);
connected = -1;
break;
}
else if (ret != rt_strlen(send_data))
{
LOG_W("%d out of %d bytes sent.", ret, rt_strlen(send_data));
} }
} }
} }