Thread 2: Thread communication event mechanism (single-threaded, two-thread, multiple-thread communication)

Communication between a thread DWORD WINAPI firstthread (void *p) {messageboxa (0, "1", "1", 0); printf ("1th thread execution complete \ n"); SetEvent (event[0]);//Send event signal return 0; } DWORD WINAPI secondthread (void *p) {WaitForSingleObject (event[0], INFINITE);//wait for the event signal to appear, perform the next messageboxa (0, "2", " 2 ", 0); printf ("2nd thread execution complete \ n"); return 0; } void Main () {//security_attributes, specifies a structure that sets the security characteristics of the object. If it becomes ByVal as Long and passes a value of 0, it indicates that the default security setting of the object is used//long, if true, to create a manual reset event, or false to create an automatic reset event//long If the event should enter the trigger state internally; true String that specifies the name of the event object. Creates an unnamed event object with vbNullString. If an event with this name already exists,//Then the existing named event will open. The name may not match the name of an existing mutex, signal machine, waiting timer, or file mapping event[0] = CreateEvent (null, TRUE, FALSE, NULL);//create event Event[1] = CreateEvent (NULL , TRUE, FALSE, NULL);  Hthread[0]=createthread (null, 0, firstthread, NULL, 0, NULL); HTHREAD[1] = CreateThread (null, 0, secondthread, NULL, 0, NULL);  WaitForMultipleObjects (2, Hthread, TRUE, INFINITE); printf ("Thread task complete \ n"); System ("pause"); }

Communication between two threads DWORD WINAPI AAA (void *p) { int i = 1;printf ("AAA%d times: Signaling aaaaa......\n", i); SetEvent (event[0]);//Here as a first-time speaker  Otherwise it will cause a deadlock while (++i) {WaitForSingleObject (event[1], INFINITE);p rintf ("AAA% D said: Signal aaaaa......\n ", i); SetEvent (Event[0]); Sleep (1000);}} DWORD WINAPI bbb (void *p) {int i = 0;while (++i) {WaitForSingleObject (event[0], INFINITE);p rintf ("BBB%d" said: Signal bbbbb ... \ n ", i); SetEvent (event[1]); Sleep (1000);}} void Main () {event[0] = CreateEvent (null, True, FALSE, null), event[1] = CreateEvent (null, True, FALSE, null); Hthread[0] = C Reatethread (null, 0, AAA, NULL, 0, NULL); Hthread[1] = CreateThread (null, 0, BBB, NULL, 0, NULL); WaitForMultipleObjects (2, Hthread, TRUE, INFINITE); System ("Pause");}

HANDLE Event[4] = {0};//event HANDLE hthread[3] = {0};//represents thread critical_section Cs;char str[1024] = {0};//buffer for chat content DWORD W INAPI Zhouruifu (void *p) {int i = 0;int k = 0;while (++i) {printf ("--------------------\ n"), if (k==0) {printf ("------------ --------k=0\n "); WaitForSingleObject (Event[0], INFINITE); EnterCriticalSection (&cs);p rintf ("\ n Mediation:%d%s", I, str); LeaveCriticalSection (&CS); Sleep (1000); SetEvent (event[1]);//Send to 1k = 1;} else {printf ("--------------------k=1\n"); WaitForSingleObject (event[2], INFINITE);//wait 2EnterCriticalSection (&CS);p rintf ("\ n Pass data:%d%s", I, str); LeaveCriticalSection (&CS); Sleep (1000); SetEvent (event[3]);//Send to 3k = 0;}}} DWORD WINAPI Hello (void *p) {int i = 1; EnterCriticalSection (&cs); memset (str, ' \nhello ', 1024x768); sprintf (str), "the first%d Times said: I love your World", I); LeaveCriticalSection (&CS); Sleep (1000); SetEvent (Event[0]); while (++i) {WaitForSingleObject (event[3], INFINITE); EnterCriticalSection (&cs); memset (str, ' \nhello ', 1024);//Clear Contents sprintf (str, "the".%d): I loVE world ", I); LeaveCriticalSection (&CS); Sleep (1000); SetEvent (Event[0]);} return 0;} DWORD WINAPI World (void *p) {int i = 0;while (++i) {WaitForSingleObject (event[1], INFINITE); EnterCriticalSection (&cs); memset (str, ' \nworld ', 1024x768); sprintf (str), "The first%d said: I love you Too", I); LeaveCriticalSection (&CS); Sleep (1000); SetEvent (event[2]);} return 0;} Communication Mediator pattern void main () between three threads InitializeCriticalSection (&CS);//Initialize event[0] = CreateEvent (null, TRUE, FALSE, NULL);//create event Event[1] = CreateEvent ( NULL, True, FALSE, null); event[2] = CreateEvent (null, True, FALSE, null); Event[3] = CreateEvent (null, True, FALSE, NULL); h Thread[0] = CreateThread (null, 0, hello, null, 0, NULL); Hthread[1] = CreateThread (null, 0, world, NULL, 0, NULL); hthread[2 ] = CreateThread (null, 0,ZHOURUIFU, NULL, 0, NULL); WaitForMultipleObjects (2, Hthread, TRUE, INFINITE);p rintf ("over");D eletecriticalsection (&CS); System ("pause");

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Thread 2: Thread communication event mechanism (single-threaded, two-thread, multiple-thread communication)