select return 0
int select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,struct timeval *timeout);. 返回值：做好准备的文件描述符的个数，超时为0， ..., The ' select() ' function is frustrating to use; you have to set up its arguments each time before you call it because it modifies them. What you are ..., Selects returns 0 when it has a timeout. The following line specifies a time out to be 1 second. tv.tv_sec = 1;. Usually a socket is ready for write ...,As select has it parameters passed as pointer and those data structures get altered by select put fd_set set; struct timeval timeout; // Set up the file descriptor set. ,另一件有趣的事：如果你將struct timeval 的欄位設定為0，select() 會在輪詢過sets 中的每個file descriptors 之後，就馬上timeout。如果你將timeout 參數設定為NULL， ... ,另一件有趣的事：如果你將struct timeval 的欄位設定為0，select() 會在輪詢過sets 中的每個file descriptors 之後，就馬上timeout。如果你將timeout 參數設定為NULL， ... , 正常狀況下 select() return 三個fdset 共有多少fd active。timeout 時return 0。收到signal return -1 且errno 設為 EINTR ，不會測試fd 也不會修改fd_set ...,struct timeval timeout=3,0}; //select等待3秒，3秒轮询，要非阻塞就置0 char buffer[256]=0}; //256字节的接收缓冲区 /* 假定已经建立UDP连接，具体过程不写，简单， ... ,#include <sys/select.h> int select(int nfds, fd_set *readfds, fd_set *writefds, ... The return value may be zero if the timeout expired before any file descriptors ...
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 select return 0 相關參考資料
select一直返回0的问题解决和总结_铁匠Smith先生的专栏 ...
int select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,struct timeval *timeout);. 返回值：做好准备的文件描述符的个数，超时为0， ... https://blog.csdn.net why select() always return 0 after the first timeout - Stack ...
The ' select() ' function is frustrating to use; you have to set up its arguments each time before you call it because it modifies them. What you are ... https://stackoverflow.com select() always returns 0 - Stack Overflow
Selects returns 0 when it has a timeout. The following line specifies a time out to be 1 second. tv.tv_sec = 1;. Usually a socket is ready for write ... https://stackoverflow.com Why is select() returning 1 but recv() returning 0? - Stack ...
As select has it parameters passed as pointer and those data structures get altered by select put fd_set set; struct timeval timeout; // Set up the file descriptor set. https://stackoverflow.com 7.2. select()：同步IO 多工- Beej's Guide to Network ...
另一件有趣的事：如果你將struct timeval 的欄位設定為0，select() 會在輪詢過sets 中的每個file descriptors 之後，就馬上timeout。如果你將timeout 參數設定為NULL， ... http://beej-zhtw.netdpi.net 7.2. select()：同步IO 多工
另一件有趣的事：如果你將struct timeval 的欄位設定為0，select() 會在輪詢過sets 中的每個file descriptors 之後，就馬上timeout。如果你將timeout 參數設定為NULL， ... http://beej-zhtw.netdpi.net select()
正常狀況下 select() return 三個fdset 共有多少fd active。timeout 時return 0。收到signal return -1 且errno 設為 EINTR ，不會測試fd 也不會修改fd_set ... http://www.cjwind.idv.tw linux c实现超时、非阻塞socket的函数select - Yunlu Liu (刘云璐)
struct timeval timeout=3,0}; //select等待3秒，3秒轮询，要非阻塞就置0 char buffer[256]=0}; //256字节的接收缓冲区 /* 假定已经建立UDP连接，具体过程不写，简单， ... https://sites.google.com select(2) - Linux manual page - man7.org
#include <sys/select.h> int select(int nfds, fd_set *readfds, fd_set *writefds, ... The return value may be zero if the timeout expired before any file descriptors ... https://www.man7.org |