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f39c51f9a7
This gets rid of all those annoying 'win', 'ux' and 'gtk' prefixes which made filenames annoying to type and to tab-complete. Also, as with my other recent renaming sprees, I've taken the opportunity to expand and clarify some of the names so that they're not such cryptic abbreviations.
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/*
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* Implementation of do_select() for winnet.c to use, suitable for use
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* when there's no GUI window to have network activity reported to.
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*
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* It uses WSAEventSelect, where available, to convert network
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* activity into activity on an event object, for integration into an
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* event loop that includes WaitForMultipleObjects.
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*
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* It also maintains a list of currently active sockets, which can be
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* retrieved by a front end that wants to use WinSock's synchronous
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* select() function.
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*/
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#include "putty.h"
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static tree234 *winselcli_sockets;
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static int socket_cmp(void *av, void *bv)
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{
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return memcmp(av, bv, sizeof(SOCKET));
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}
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HANDLE winselcli_event = INVALID_HANDLE_VALUE;
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void winselcli_setup(void)
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{
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if (!winselcli_sockets)
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winselcli_sockets = newtree234(socket_cmp);
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if (p_WSAEventSelect && winselcli_event == INVALID_HANDLE_VALUE)
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winselcli_event = CreateEvent(NULL, false, false, NULL);
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}
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SOCKET winselcli_unique_socket(void)
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{
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if (!winselcli_sockets)
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return INVALID_SOCKET;
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assert(count234(winselcli_sockets) <= 1);
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SOCKET *p = index234(winselcli_sockets, 0);
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if (!p)
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return INVALID_SOCKET;
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return *p;
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}
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const char *do_select(SOCKET skt, bool enable)
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{
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/* Check everything's been set up, for convenience of callers. */
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winselcli_setup();
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if (enable) {
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SOCKET *ptr = snew(SOCKET);
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*ptr = skt;
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if (add234(winselcli_sockets, ptr) != ptr)
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sfree(ptr); /* already there */
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} else {
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SOCKET *ptr = del234(winselcli_sockets, &skt);
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if (ptr)
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sfree(ptr);
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}
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if (p_WSAEventSelect) {
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int events;
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if (enable) {
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events = (FD_CONNECT | FD_READ | FD_WRITE |
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FD_OOB | FD_CLOSE | FD_ACCEPT);
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} else {
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events = 0;
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}
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if (p_WSAEventSelect(skt, winselcli_event, events) == SOCKET_ERROR)
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return winsock_error_string(p_WSAGetLastError());
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}
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return NULL;
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}
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