threads written
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205
Pipe/main.c
205
Pipe/main.c
@ -7,7 +7,7 @@
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#include "pipe.h"
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#ifdef _MSC_VER
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#define inline __inline
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#define inline __inline
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#endif
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/* Integrate every element of the signal. */
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@ -35,16 +35,16 @@ void square(pipe_t * const p)
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/* Integrate over every element of the signal. */
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void integrate(pipe_t * const pipe)
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{
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uint32_t state = *((uint32_t*)pipe->state);
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uint32_t state = *((uint32_t*)pipe->state);
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while (Pipe_isFilled(pipe))
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while (Pipe_isFilled(pipe))
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{
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uint32_t item = Pipe_Read(pipe);
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uint32_t item = Pipe_Read(pipe);
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state = state + item;
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Pipe_Write(pipe, state);
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Pipe_Write(pipe, state);
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}
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*((uint32_t*)pipe->state) = state;
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*((uint32_t*)pipe->state) = state;
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}
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/* Build the sum of all elements of the signal. */
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@ -52,9 +52,9 @@ void sum(pipe_t * const pipe)
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{
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uint32_t sum = 0;
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while (Pipe_isFilled(pipe))
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sum += Pipe_Read(pipe);
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Pipe_Write(pipe, sum);
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while (Pipe_isFilled(pipe))
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sum += Pipe_Read(pipe);
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Pipe_Write(pipe, sum);
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}
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/* Build the average of all elements of the signal. */
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@ -64,169 +64,84 @@ void average(pipe_t * const pipe)
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uint32_t element_counter = 0;
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uint32_t average = 0;
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while (Pipe_isFilled(pipe))
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while (Pipe_isFilled(pipe))
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{
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sum += Pipe_Read(pipe);
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sum += Pipe_Read(pipe);
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element_counter++;
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}
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average = sum / element_counter;
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Pipe_Write(pipe, average);
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Pipe_Write(pipe, average);
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}
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/* Print the signal. */
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void print(pipe_t * const pipe)
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{
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printf("\nOutput:\n");
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while (Pipe_isFilled(pipe))
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printf("%d\n", Pipe_Read(pipe));
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while (Pipe_isFilled(pipe))
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printf("%d\n", Pipe_Read(pipe));
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}
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/* Logging function. Set by user. */
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void log(pipe_t * const source, pipe_t * const target, uint32_t element)
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{
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if (Pipe_isFull(target))
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printf("Error: Pipe %s is full!\n", target->name);
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if (Pipe_isFull(target))
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printf("Error: Pipe %s is full!\n", target->name);
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if (source->state == NULL && target->state == NULL)
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printf("%s -> %d -> %s\n", source->name, element, target->name);
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else if (source->state != NULL && target->state != NULL)
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printf("%s(%d) -> %d -> %s(%d)\n", source->name, *((uint32_t*)source->state), element, target->name, *((uint32_t*)target->state));
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else if (source->state != NULL)
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printf("%s(%d) -> %d -> %s\n", source->name, *((uint32_t*)source->state), element, target->name);
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if (source->state == NULL && target->state == NULL)
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printf("%s -> %d -> %s\n", source->name, element, target->name);
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else if (source->state != NULL && target->state != NULL)
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printf("%s(%d) -> %d -> %s(%d)\n", source->name, *((uint32_t*)source->state), element, target->name, *((uint32_t*)target->state));
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else if (source->state != NULL)
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printf("%s(%d) -> %d -> %s\n", source->name, *((uint32_t*)source->state), element, target->name);
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else
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printf("%s -> %d -> %s(%d)\n", source->name, element, target->name, *((uint32_t*)target->state));
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printf("%s -> %d -> %s(%d)\n", source->name, element, target->name, *((uint32_t*)target->state));
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}
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#define BUF_SIZE 255
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void DisplayMessage(HANDLE hScreen,
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char *ThreadName, int Data, int Count)
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{
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TCHAR msgBuf[BUF_SIZE];
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size_t cchStringSize;
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DWORD dwChars;
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// Print message using thread-safe functions.
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StringCchPrintf(msgBuf, BUF_SIZE,
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TEXT("Executing iteration %02d of %s"
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" having data = %02d \n"),
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Count, ThreadName, Data);
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StringCchLength(msgBuf, BUF_SIZE, &cchStringSize);
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WriteConsole(hScreen, msgBuf, cchStringSize,
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&dwChars, NULL);
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}
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DWORD WINAPI Thread_no_2(LPVOID lpParam)
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{
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int Data = 0;
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int count = 0;
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HANDLE hStdout = NULL;
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// Get Handle To screen.
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// Else how will we print?
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if ((hStdout =
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GetStdHandle(STD_OUTPUT_HANDLE))
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== INVALID_HANDLE_VALUE)
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return 1;
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// Cast the parameter to the correct
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// data type passed by callee i.e main() in our case.
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Data = *((int*)lpParam);
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for (count = 0; count <= 4; count++)
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{
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DisplayMessage(hStdout, "Thread_no_1", Data, count);
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}
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return 0;
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}
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DWORD WINAPI Thread_no_1(LPVOID lpParam)
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{
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int Data = 0;
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int count = 0;
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HANDLE hStdout = NULL;
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// Get Handle To screen.
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// Else how will we print?
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if ((hStdout =
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GetStdHandle(STD_OUTPUT_HANDLE))
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== INVALID_HANDLE_VALUE)
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return 1;
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// Cast the parameter to the correct
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// data type passed by callee i.e main() in our case.
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Data = *((int*)lpParam);
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for (count = 0; count <= 4; count++)
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{
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DisplayMessage(hStdout, "Thread_no_2", Data, count);
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}
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return 0;
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}
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int main(void)
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extern void threads(void);
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int main(int argc, char *argv[])
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{
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uint32_t counter = 0;
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/* Create pipes and connect them */
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Pipe_Create(increment_pipe, 4, 1, NULL, NULL);
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Pipe_Create(square_pipe, 4, 1, NULL, NULL);
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Pipe_Create(integrate_pipe, 8, 2, &counter, log);
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Pipe_Create(sum_pipe, 8, 1, NULL, log);
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Pipe_Create(average_pipe, 8, 1, NULL, log);
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Pipe_Create(print_pipe, 4, 1, NULL, log);
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if (argc == 1)
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{
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/* Create pipes and connect them */
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Pipe_Create(increment_pipe, 4, 1, NULL, log);
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Pipe_Create(square_pipe, 4, 1, NULL, log);
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Pipe_Create(integrate_pipe, 8, 2, &counter, log);
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Pipe_Create(sum_pipe, 8, 2, NULL, log);
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Pipe_Create(average_pipe, 8, 2, NULL, log);
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Pipe_Create(print_pipe, 4, 2, NULL, log);
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Pipe_Connect(&increment_pipe, &integrate_pipe);
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Pipe_Connect(&square_pipe, &integrate_pipe);
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Pipe_Connect(&integrate_pipe, &sum_pipe);
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Pipe_Connect(&integrate_pipe, &average_pipe);
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Pipe_Connect(&sum_pipe, &print_pipe);
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Pipe_Connect(&average_pipe, &print_pipe);
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Pipe_Connect(&increment_pipe, &integrate_pipe);
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Pipe_Connect(&square_pipe, &integrate_pipe);
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Pipe_Connect(&integrate_pipe, &sum_pipe);
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Pipe_Connect(&integrate_pipe, &average_pipe);
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Pipe_Connect(&sum_pipe, &print_pipe);
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Pipe_Connect(&average_pipe, &print_pipe);
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/* Create Threads */
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int Data_Of_Thread_1 = 1;
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int Data_Of_Thread_2 = 2;
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HANDLE Handle_Of_Thread_1 = 0;
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HANDLE Handle_Of_Thread_2 = 0;
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/* Create Input */
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Pipe_Insert(&increment_pipe, 1);
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Pipe_Insert(&increment_pipe, 3);
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Pipe_Insert(&increment_pipe, 5);
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Handle_Of_Thread_1 = CreateThread(NULL, 0, Thread_no_1, &Data_Of_Thread_1, 0, NULL);
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if (Handle_Of_Thread_1 == NULL)
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ExitProcess(Data_Of_Thread_1);
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Pipe_Insert(&square_pipe, 2);
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Pipe_Insert(&square_pipe, 4);
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Pipe_Insert(&square_pipe, 6);
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Handle_Of_Thread_2 = CreateThread(NULL, 0, Thread_no_2, &Data_Of_Thread_2, 0, NULL);
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if (Handle_Of_Thread_2 == NULL)
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ExitProcess(Data_Of_Thread_2);
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/* run the functions (each can run in an own thread) */
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increment(&increment_pipe);
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square(&square_pipe);
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integrate(&integrate_pipe);
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sum(&sum_pipe);
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average(&average_pipe);
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print(&print_pipe);
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HANDLE Array_Of_Thread_Handles[] = { Handle_Of_Thread_1, Handle_Of_Thread_1 };
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WaitForMultipleObjects(3, Array_Of_Thread_Handles, TRUE, INFINITE);
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CloseHandle(Handle_Of_Thread_1);
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CloseHandle(Handle_Of_Thread_2);
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/* Generate input */
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Pipe_Insert(&increment_pipe, 1);
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Pipe_Insert(&increment_pipe, 3);
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Pipe_Insert(&increment_pipe, 5);
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Pipe_Insert(&square_pipe, 2);
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Pipe_Insert(&square_pipe, 4);
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Pipe_Insert(&square_pipe, 6);
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/* run the functions (each can run in an own thread) */
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increment(&increment_pipe);
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square(&square_pipe);
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integrate(&integrate_pipe);
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sum(&sum_pipe);
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average(&average_pipe);
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print(&print_pipe);
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getchar();
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getchar();
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}
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else
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{
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threads();
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}
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return 0;
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}
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