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UDP server support to send CSI data to UDP client
ADD sample client file for datadump over UDP Changes in csifw_test app and data-format in saved file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,206 @@ | ||
| #include "include/CSILogsDumper.h" | ||
| #include <sys/socket.h> | ||
| #include <netdb.h> | ||
| #include <pthread.h> | ||
| #include <errno.h> | ||
|
|
||
| #define PORT 5000 | ||
| #define CONTROL_COMMAND_BUFFER_SIZE 128 | ||
| #define CSI_DATA_DUMP_BUFFER_SIZE 1024 | ||
|
|
||
| unsigned char gCSIDataDumpBuffer[CSI_DATA_DUMP_BUFFER_SIZE]; | ||
| char gControlCommandBuffer[CONTROL_COMMAND_BUFFER_SIZE]; | ||
|
|
||
| csiDataDumpListener gListener = NULL; | ||
| static pthread_t gThreadId = -1; | ||
| static int gSockFd = -1, gFifoFd = -1; | ||
| struct sockaddr_in gServerAddr, gClientAddr; | ||
| socklen_t gClientLen = sizeof(gClientAddr); | ||
| fd_set readfds; | ||
| int maxfd; | ||
|
|
||
| static int gWaitingForData = 0; | ||
| static int gRemainingBytes = 0; | ||
| static int gBytesReadSofar = 0; | ||
|
|
||
| static int recv_message(int fd, void *buf, int buflen) | ||
| { | ||
| int received = 0; | ||
| while (1) { | ||
| int res = read(fd, buf + received, buflen - received); | ||
| if (res < 0) { | ||
| int err_no = errno; | ||
| if (err_no == EAGAIN || err_no == EINTR) { | ||
| continue; | ||
| } | ||
| CSIFW_LOGE("read error %d\n", err_no); | ||
| return -1; | ||
| } | ||
| received += res; | ||
| if (received == buflen) { | ||
| break; | ||
| } | ||
| } | ||
| return received; | ||
| } | ||
|
|
||
| static void print_buf(const unsigned char* buf, int len) | ||
| { | ||
| printf("\n RAW DATA %d\n\n", len); | ||
| unsigned long long *buff_tmp = (u64 *)buf; | ||
| int buff_len = (len / 8) + 1; | ||
| for (int i = 0; i < buff_len; i++) | ||
| printf("[%02d]0x%016llx\n", i, buff_tmp[i]); | ||
| } | ||
|
|
||
| void set_event_listener(csiDataDumpListener listener) | ||
| { | ||
| gListener = listener; | ||
| } | ||
|
|
||
| void *dataTransmitter(void *arg) | ||
| { | ||
| int len; | ||
| while (1) { | ||
| FD_ZERO(&readfds); | ||
| FD_SET(gSockFd, &readfds); | ||
| FD_SET(gFifoFd, &readfds); | ||
| maxfd = (gSockFd > gFifoFd) ? gSockFd : gFifoFd; | ||
|
|
||
| CSIFW_LOGI("Wait for an activity on one of the file descriptors"); | ||
| int ret = select(maxfd + 1, &readfds, NULL, NULL, NULL); | ||
| if (ret < 0) { | ||
| if (errno == EBADF){ | ||
| CSIFW_LOGE("select operation failed due to file descripter close: %d", errno); | ||
| return; | ||
| } | ||
| else if(errno == EINTR){ | ||
| CSIFW_LOGE("select operation failed due to Temporary Interrupt: %d", errno); | ||
| continue;; | ||
| } | ||
| CSIFW_LOGE("select operation failed over file descripters: %d", errno); | ||
| return; | ||
| } | ||
|
|
||
| // Check if there's data on the UDP socket | ||
| if (FD_ISSET(gSockFd, &readfds)) { | ||
| CSIFW_LOGI("Received an activity on sockfd descriptors"); | ||
| len = recvfrom(gSockFd, gControlCommandBuffer, CONTROL_COMMAND_BUFFER_SIZE-1, 0, (struct sockaddr *)&gClientAddr, &gClientLen); | ||
| if (len < 0) { | ||
| continue; | ||
| } | ||
| gControlCommandBuffer[len] = '\0'; | ||
| if (strncmp(gControlCommandBuffer, "START", 6) == 0) { | ||
| gListener(START_DUMP); | ||
| CSIFW_LOGI("Received START command. Starting to send data to client from FIFO"); | ||
| } else if (strncmp(gControlCommandBuffer, "STOP", 5) == 0) { | ||
| gListener(STOP_DUMP); | ||
| CSIFW_LOGI("Received STOP command. Stopping data transfer to client from FIFO"); | ||
| } else { | ||
| CSIFW_LOGI("Received unknown command: %s", gControlCommandBuffer); | ||
| continue; | ||
| } | ||
| } | ||
|
|
||
| // Check if there's data on the FIFO | ||
| if (FD_ISSET(gFifoFd, &readfds)) { | ||
| CSIFW_LOGI("Received an activity on Fifo descriptors"); | ||
|
|
||
| if (!gWaitingForData) { | ||
| // Get the length from the first 2 bytes | ||
| len = recv_message(gFifoFd, (void *)gCSIDataDumpBuffer, 2); | ||
| if (len <= 0) { | ||
| CSIFW_LOGE("operation to read length of data from FIFO Failed"); | ||
| continue; | ||
| } | ||
| uint16_t length; | ||
| memcpy(&length , gCSIDataDumpBuffer, sizeof(length)); | ||
| CSIFW_LOGI("Read %d length to client:", length); | ||
| len = sendto(gSockFd, &length, sizeof(length), 0, (struct sockaddr *)&gClientAddr, sizeof(gClientAddr)); | ||
| if (len == -1) { | ||
| CSIFW_LOGE("sendto error:%d", errno); | ||
| continue; | ||
| } | ||
| gRemainingBytes = length; | ||
| gWaitingForData = 1; | ||
| gBytesReadSofar = 0; | ||
| } | ||
| if (gWaitingForData) { | ||
| // We are expecting to read the actual data | ||
| ssize_t bytes_read = read(gFifoFd, gCSIDataDumpBuffer + gBytesReadSofar, gRemainingBytes); | ||
| if (bytes_read < 0) { | ||
| int err_no = errno; | ||
| if (err_no == EAGAIN || err_no == EINTR) { | ||
| continue; | ||
| } | ||
| CSIFW_LOGE("read error %d\n", err_no); | ||
| continue; // or return | ||
| } | ||
|
|
||
| gBytesReadSofar += bytes_read; | ||
| gRemainingBytes -= bytes_read; | ||
|
|
||
| if (gRemainingBytes == 0) { | ||
| // Complete data received | ||
| gWaitingForData = 0; | ||
| // Send the data to the client | ||
| len = sendto(gSockFd, gCSIDataDumpBuffer, gBytesReadSofar, 0, (struct sockaddr *)&gClientAddr, sizeof(gClientAddr)); | ||
| if (len == -1) { | ||
| CSIFW_LOGE("sendto error:%d", errno); | ||
| continue; | ||
| } | ||
| CSIFW_LOGI("Sent %d bytes to client", len); | ||
| print_buf(gCSIDataDumpBuffer,len); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| CSIFW_RES csi_logs_dumper_init(void) | ||
| { | ||
| if ((gSockFd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { | ||
| CSIFW_LOGE("failed to create a socket fd"); | ||
| return CSIFW_ERROR; | ||
| } | ||
|
|
||
| memset(&gServerAddr, 0, sizeof(gServerAddr)); | ||
| gServerAddr.sin_family = AF_INET; | ||
| gServerAddr.sin_addr.s_addr = INADDR_ANY; | ||
| gServerAddr.sin_port = htons(PORT); | ||
|
|
||
| if (bind(gSockFd, (struct sockaddr*)&gServerAddr, sizeof(gServerAddr)) < 0) { | ||
| CSIFW_LOGE("binding socket failed"); | ||
| close(gSockFd); | ||
| return CSIFW_ERROR; | ||
| } | ||
| printf("server Socket Created\n"); | ||
| gFifoFd = open(CSI_DUMP_DATA_QUEUE_NAME, O_RDONLY | O_NONBLOCK); | ||
| if (gFifoFd < 0) { | ||
| CSIFW_LOGE("open CSI_DUMP_DATA_QUEUE fail %d", errno); | ||
| close(gSockFd); | ||
| return CSIFW_ERROR; | ||
| } | ||
|
|
||
| if (pthread_create(&gThreadId, NULL, dataTransmitter, NULL) != 0) { | ||
| CSIFW_LOGE("Failed to create dataTransmitter thread %d", errno); | ||
| close(gSockFd); | ||
| close(gFifoFd); | ||
| return CSIFW_ERROR; | ||
| } | ||
|
|
||
| if (pthread_setname_np(gThreadId, "CSI_DataDumpOverNetwork") != 0) { | ||
| CSIFW_LOGE("Error in setting dataTransmitter thread name, error_no: %d", errno); | ||
| } | ||
| CSIFW_LOGI("CSI_DataDumpOverNetwork created"); | ||
| return CSIFW_OK; | ||
| } | ||
|
|
||
| CSIFW_RES csi_logs_dumper_deinit() | ||
| { | ||
| gListener = NULL; | ||
| close(gSockFd); | ||
| close(gFifoFd); | ||
| pthread_join(gThreadId, NULL); | ||
| return CSIFW_OK; | ||
| } |
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