modern pipe

main.c

@@ -59,6 +59,10 @@
 #include <signal.h>
 #include <unistd.h>
 #include <string.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <poll.h>
 #endif
 
 #include <stdio.h>
@@ -68,21 +72,21 @@
 #include "l502_fpga_regs.h"
 
 
-/* Remove unused enums/structs and constants that are not referenced anywhere */
+/* Remove unused enums/structs and constants that are not referenced anywhere */
 
 // количество используемых логических каналов //
 #define ADC_LCH_CNT  1
 
-/* Unused frequency/timing defines removed */
+/* Unused frequency/timing defines removed */
 
 
 // сколько отсчетов считываем за блок //
-#define READ_BLOCK_SIZE   4096*200
+#define READ_BLOCK_SIZE   4096*200
 // таймаут на прием блока (мс) //
-#define READ_TIMEOUT     2000
+#define READ_TIMEOUT     2000
 
 
-/* Unused BF user command define removed */
+/* Unused BF user command define removed */
 
 
 // номера используемых физических каналов //
@@ -125,7 +129,7 @@ static uint32_t f_ch_ranges[ADC_LCH_CNT] = {X502_ADC_RANGE_02, X502_ADC_RANGE_5,
 
 
 // признак необходимости завершить сбор данных //
-static int f_out = 0;
+static int f_out = 0;
 
 #ifndef _WIN32
 // Обработчик сигнала завершения для Linux //
@@ -143,123 +147,139 @@ typedef struct {
 } ip_dev_list_t;
 
 
-typedef enum {
-  RUN_MODE_TEST = 0,
-  RUN_MODE_FINITE = 1,
-  RUN_MODE_INF = 2
-} run_mode_t;
-
-typedef enum {
-  BF_MODE_TRANSPARENT = 0,
+typedef enum {
+  RUN_MODE_TEST = 0,
+  RUN_MODE_FINITE = 1,
+  RUN_MODE_INF = 2
+} run_mode_t;
+
+typedef enum {
+  BF_MODE_TRANSPARENT = 0,
   BF_MODE_AVG = 1,
-  BF_MODE_FFT = 2
-} bf_mode_t;
-
-typedef enum {
-  BFMODE_TRANSPARENT = 0,
-  BFMODE_AVG = 1,
-  BFMODE_FFT = 2
-} blackfin_mode_t;
-
-typedef struct main_state_typedef{
-  run_mode_t run_mode; // TEST, FINITE_RUN, INF_RUN
-  bf_mode_t BF_mode;   // TRANSPARENT, AVG
-  blackfin_mode_t BlackFin_mode; // TRANSPARENT, AVG, FFT
-  uint32_t run_length; // in ms. Used as timeout for receive_to_file
-  uint32_t run_I;      // № current run
-  uint32_t runs_N;     // total number of runs
-  char data_path[200]; // base directory for data files
-} main_state;
-
-static void main_state_set_defaults(main_state* st) {
-  st->run_mode = RUN_MODE_TEST;
-  st->BF_mode = BF_MODE_TRANSPARENT;
-  st->BlackFin_mode = BFMODE_TRANSPARENT;
-  st->run_length = 1000;
-  st->run_I = 0;
-  st->runs_N = 1;
-  strncpy(st->data_path, "data", sizeof(st->data_path));
-  st->data_path[sizeof(st->data_path)-1] = '\0';
-}
-
-static char* f_trim(char* s) {
-  char* end;
-  while (*s==' ' || *s=='\t' || *s=='\r' || *s=='\n') s++;
-  if (*s == 0) return s;
-  end = s + strlen(s) - 1;
-  while (end > s && (*end==' ' || *end=='\t' || *end=='\r' || *end=='\n')) end--;
-  end[1] = '\0';
-  return s;
-}
-
-static void parse_cmd_file(const char* filename, main_state* st) {
-  FILE* f = fopen(filename, "r");
-  if (f == NULL) {
-    printf("Command file '%s' not found. Using defaults.\n", filename);
-    return;
-  }
-  char line[512];
-  while (fgets(line, sizeof(line), f)) {
-    char* p = line;
-    char* comment = strstr(p, "//");
-    if (comment) *comment = '\0';
-    p = f_trim(p);
-    if (*p == '\0') continue;
-    char* field = strtok(p, "\t \r\n");
-    char* value = strtok(NULL, "\t \r\n");
-    if (!field || !value) continue;
-
-    if (strcmp(field, "run_mode") == 0) {
-      if (strcmp(value, "FINITE_RUN") == 0) {
-        st->run_mode = RUN_MODE_FINITE;
-      } else if (strcmp(value, "INF_RUN") == 0) {
-        st->run_mode = RUN_MODE_INF;
-      } else if (strcmp(value, "TEST") == 0) {
-        st->run_mode = RUN_MODE_TEST;
-      } else {
-        st->run_mode = RUN_MODE_TEST; // default on mismatch
-      }
-    } else if (strcmp(field, "BF_mode") == 0) {
-      if (strcmp(value, "TRANSPARENT") == 0) {
-        st->BF_mode = BF_MODE_TRANSPARENT;
-      } else if (strcmp(value, "AVG") == 0) {
+  BF_MODE_FFT = 2
+} bf_mode_t;
+
+typedef enum {
+  BFMODE_TRANSPARENT = 0,
+  BFMODE_AVG = 1,
+  BFMODE_FFT = 2
+} blackfin_mode_t;
+
+typedef struct main_state_typedef{
+  run_mode_t run_mode; // TEST, FINITE_RUN, INF_RUN
+  bf_mode_t BF_mode;   // TRANSPARENT, AVG
+  blackfin_mode_t BlackFin_mode; // TRANSPARENT, AVG, FFT
+  uint32_t run_length; // in ms. Used as timeout for receive_to_file
+  uint32_t run_I;      // № current run
+  uint32_t runs_N;     // total number of runs
+  char data_path[200]; // base directory for data files
+  char pipe_path[200]; // path to named pipe (FIFO) for streaming data
+  int pipe_fd;         // file descriptor for the pipe
+  int save_to_files;   // flag: save data to files (0=false, 1=true)
+} main_state;
+
+static void main_state_set_defaults(main_state* st) {
+  st->run_mode = RUN_MODE_TEST;
+  st->BF_mode = BF_MODE_TRANSPARENT;
+  st->BlackFin_mode = BFMODE_TRANSPARENT;
+  st->run_length = 1000;
+  st->run_I = 0;
+  st->runs_N = 1;
+  strncpy(st->data_path, "data", sizeof(st->data_path));
+  st->data_path[sizeof(st->data_path)-1] = '\0';
+  strncpy(st->pipe_path, "/tmp/radar_data_pipe", sizeof(st->pipe_path));
+  st->pipe_path[sizeof(st->pipe_path)-1] = '\0';
+  st->pipe_fd = -1;
+  st->save_to_files = 0; // default: false
+}
+
+static char* f_trim(char* s) {
+  char* end;
+  while (*s==' ' || *s=='\t' || *s=='\r' || *s=='\n') s++;
+  if (*s == 0) return s;
+  end = s + strlen(s) - 1;
+  while (end > s && (*end==' ' || *end=='\t' || *end=='\r' || *end=='\n')) end--;
+  end[1] = '\0';
+  return s;
+}
+
+static void parse_cmd_file(const char* filename, main_state* st) {
+  FILE* f = fopen(filename, "r");
+  if (f == NULL) {
+    printf("Command file '%s' not found. Using defaults.\n", filename);
+    return;
+  }
+  char line[512];
+  while (fgets(line, sizeof(line), f)) {
+    char* p = line;
+    char* comment = strstr(p, "//");
+    if (comment) *comment = '\0';
+    p = f_trim(p);
+    if (*p == '\0') continue;
+    char* field = strtok(p, "\t \r\n");
+    char* value = strtok(NULL, "\t \r\n");
+    if (!field || !value) continue;
+
+    if (strcmp(field, "run_mode") == 0) {
+      if (strcmp(value, "FINITE_RUN") == 0) {
+        st->run_mode = RUN_MODE_FINITE;
+      } else if (strcmp(value, "INF_RUN") == 0) {
+        st->run_mode = RUN_MODE_INF;
+      } else if (strcmp(value, "TEST") == 0) {
+        st->run_mode = RUN_MODE_TEST;
+      } else {
+        st->run_mode = RUN_MODE_TEST; // default on mismatch
+      }
+    } else if (strcmp(field, "BF_mode") == 0) {
+      if (strcmp(value, "TRANSPARENT") == 0) {
+        st->BF_mode = BF_MODE_TRANSPARENT;
+      } else if (strcmp(value, "AVG") == 0) {
         st->BF_mode = BF_MODE_AVG;
       } else if (strcmp(value, "FFT") == 0) {
-        st->BF_mode = BF_MODE_FFT;
-      } else {
-        st->BF_mode = BF_MODE_TRANSPARENT; // default on mismatch
-      }
-    } else if (strcmp(field, "BlackFin_mode") == 0) {
-      if (strcmp(value, "TRANSPARENT") == 0) {
-        st->BlackFin_mode = BFMODE_TRANSPARENT;
-      } else if (strcmp(value, "AVG") == 0) {
-        st->BlackFin_mode = BFMODE_AVG;
-      } else if (strcmp(value, "FFT") == 0) {
-        st->BlackFin_mode = BFMODE_FFT;
-      } else {
-        st->BlackFin_mode = BFMODE_TRANSPARENT; // default on mismatch
-      }
-    } else if (strcmp(field, "run_length") == 0) {
-      char* endp = NULL;
-      unsigned long v = strtoul(value, &endp, 0);
-      if (endp != value) st->run_length = (uint32_t)v;
-    } else if (strcmp(field, "runs_N") == 0) {
-      char* endp = NULL;
-      unsigned long v = strtoul(value, &endp, 0);
-      if (endp != value) st->runs_N = (uint32_t)v;
-    } else if (strcmp(field, "run_I") == 0) {
-      char* endp = NULL;
-      unsigned long v = strtoul(value, &endp, 0);
-      if (endp != value) st->run_I = (uint32_t)v;
-    } else if (strcmp(field, "data_path") == 0) {
-      strncpy(st->data_path, value, sizeof(st->data_path));
-      st->data_path[sizeof(st->data_path)-1] = '\0';
-    }
-  }
-  fclose(f);
-}
+        st->BF_mode = BF_MODE_FFT;
+      } else {
+        st->BF_mode = BF_MODE_TRANSPARENT; // default on mismatch
+      }
+    } else if (strcmp(field, "BlackFin_mode") == 0) {
+      if (strcmp(value, "TRANSPARENT") == 0) {
+        st->BlackFin_mode = BFMODE_TRANSPARENT;
+      } else if (strcmp(value, "AVG") == 0) {
+        st->BlackFin_mode = BFMODE_AVG;
+      } else if (strcmp(value, "FFT") == 0) {
+        st->BlackFin_mode = BFMODE_FFT;
+      } else {
+        st->BlackFin_mode = BFMODE_TRANSPARENT; // default on mismatch
+      }
+    } else if (strcmp(field, "run_length") == 0) {
+      char* endp = NULL;
+      unsigned long v = strtoul(value, &endp, 0);
+      if (endp != value) st->run_length = (uint32_t)v;
+    } else if (strcmp(field, "runs_N") == 0) {
+      char* endp = NULL;
+      unsigned long v = strtoul(value, &endp, 0);
+      if (endp != value) st->runs_N = (uint32_t)v;
+    } else if (strcmp(field, "run_I") == 0) {
+      char* endp = NULL;
+      unsigned long v = strtoul(value, &endp, 0);
+      if (endp != value) st->run_I = (uint32_t)v;
+    } else if (strcmp(field, "data_path") == 0) {
+      strncpy(st->data_path, value, sizeof(st->data_path));
+      st->data_path[sizeof(st->data_path)-1] = '\0';
+    } else if (strcmp(field, "pipe_path") == 0) {
+      strncpy(st->pipe_path, value, sizeof(st->pipe_path));
+      st->pipe_path[sizeof(st->pipe_path)-1] = '\0';
+    } else if (strcmp(field, "save_to_files") == 0) {
+      if (strcmp(value, "true") == 0 || strcmp(value, "1") == 0) {
+        st->save_to_files = 1;
+      } else if (strcmp(value, "false") == 0 || strcmp(value, "0") == 0) {
+        st->save_to_files = 0;
+      }
+    }
+  }
+  fclose(f);
+}
 
-/* Unused SIGINT handler and flag removed */
+/* Unused SIGINT handler and flag removed */
 
 
 /* Функция находит все подключенные модули по интерфейсам PCI-Express и USB и
@@ -367,6 +387,7 @@ static t_x502_hnd f_dev_select_open(int argc, char** argv) {
     fnd_devcnt = f_get_all_devrec(&devrec_list, ip_dev_list, ip_cnt);
 
     if (fnd_devcnt == 0) {
+        
         printf("Не найдено ни одного модуля\n");
     } else {
         // выводим информацию по списку модулей //
@@ -694,9 +715,159 @@ void insert_marker_to_file(char* logfilename, char* marker_text){
 	fclose(logfile_ptr);
 }
 
+#ifndef _WIN32
+// Function to check if pipe reader is present and ready
+// Returns: 1 if ready to write, 0 if should wait, -1 on error
+int check_pipe_ready(int pipe_fd) {
+	if (pipe_fd < 0) {
+		return -1;
+	}
 
+	struct pollfd pfd;
+	pfd.fd = pipe_fd;
+	pfd.events = POLLOUT;
+	pfd.revents = 0;
 
-void receive_to_file(t_x502_hnd hnd, char* logfilename, uint32_t* inp_buff, uint32_t max_total_words, uint32_t timeout){
+	// Check with 0 timeout (non-blocking check)
+	int ret = poll(&pfd, 1, 0);
+
+	if (ret < 0) {
+		fprintf(stderr, "Error polling pipe: %s\n", strerror(errno));
+		return -1;
+	}
+
+	if (ret == 0) {
+		// Timeout - pipe buffer is full, reader is slow or absent
+		return 0;
+	}
+
+	// Check for errors
+	if (pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) {
+		if (pfd.revents & POLLERR) {
+			fprintf(stderr, "Pipe error detected\n");
+		}
+		if (pfd.revents & POLLHUP) {
+			fprintf(stderr, "Pipe hangup - reader disconnected\n");
+		}
+		if (pfd.revents & POLLNVAL) {
+			fprintf(stderr, "Invalid pipe fd\n");
+		}
+		return -1;
+	}
+
+	// POLLOUT is set - ready to write
+	if (pfd.revents & POLLOUT) {
+		return 1;
+	}
+
+	return 0;
+}
+
+// Function to wait for pipe to become ready
+// Returns: 1 if ready, 0 if interrupted, -1 on error
+int wait_for_pipe_reader(int pipe_fd) {
+	if (pipe_fd < 0) {
+		return -1;
+	}
+
+	printf("Waiting for pipe reader to become ready...\n");
+
+	struct pollfd pfd;
+	pfd.fd = pipe_fd;
+	pfd.events = POLLOUT;
+
+	while (1) {
+		pfd.revents = 0;
+
+		// Wait with 1 second timeout
+		int ret = poll(&pfd, 1, 1000);
+
+		if (ret < 0) {
+			if (errno == EINTR) {
+				// Interrupted by signal, continue
+				continue;
+			}
+			fprintf(stderr, "Error waiting for pipe: %s\n", strerror(errno));
+			return -1;
+		}
+
+		if (ret == 0) {
+			// Timeout - print status and continue waiting
+			printf("Still waiting for pipe reader...\n");
+			continue;
+		}
+
+		// Check for errors
+		if (pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) {
+			fprintf(stderr, "Pipe error while waiting\n");
+			return -1;
+		}
+
+		// Ready to write
+		if (pfd.revents & POLLOUT) {
+			printf("Pipe reader is ready!\n");
+			return 1;
+		}
+	}
+}
+
+// Function to initialize named pipe (FIFO)
+int init_pipe(const char* pipe_path) {
+	// Remove existing pipe if it exists
+	unlink(pipe_path);
+
+	// Create named pipe with read/write permissions
+	if (mkfifo(pipe_path, 0666) != 0) {
+		if (errno != EEXIST) {
+			fprintf(stderr, "Error creating pipe %s: %s\n", pipe_path, strerror(errno));
+			return -1;
+		}
+	}
+
+	printf("Named pipe created: %s\n", pipe_path);
+
+	// Try to open in non-blocking mode first to check if reader is present
+	int fd = open(pipe_path, O_WRONLY | O_NONBLOCK);
+	if (fd < 0) {
+		if (errno == ENXIO) {
+			// No reader present, try blocking mode
+			printf("No reader detected. Waiting for reader to connect...\n");
+			printf("(You can start the reader program now, e.g.: ./pipe_reader_test.py)\n");
+
+			// Open in blocking mode - will wait for reader
+			fd = open(pipe_path, O_WRONLY);
+			if (fd < 0) {
+				fprintf(stderr, "Error opening pipe for writing: %s\n", strerror(errno));
+				return -1;
+			}
+			printf("Reader connected!\n");
+		} else {
+			fprintf(stderr, "Warning: Could not open pipe for writing: %s\n", strerror(errno));
+			fprintf(stderr, "Pipe will be skipped. Data will only be saved to file.\n");
+			return -1;
+		}
+	} else {
+		printf("Reader already connected!\n");
+		// Set back to blocking mode for writes
+		int flags = fcntl(fd, F_GETFL);
+		fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
+	}
+
+	printf("Pipe opened successfully (fd=%d)\n", fd);
+	return fd;
+}
+
+// Function to close pipe
+void close_pipe(int pipe_fd, const char* pipe_path) {
+	if (pipe_fd >= 0) {
+		close(pipe_fd);
+		unlink(pipe_path);
+		printf("Pipe closed and removed\n");
+	}
+}
+#endif
+
+void receive_to_file(t_x502_hnd hnd, char* logfilename, uint32_t* inp_buff, uint32_t max_total_words, uint32_t timeout, int pipe_fd){
 
 
 
@@ -723,6 +894,44 @@ void receive_to_file(t_x502_hnd hnd, char* logfilename, uint32_t* inp_buff, uint
 	  printf("received %ld words\n", received_words);
 	  fclose(logfile_ptr);
 	  rename(logfilename_tmp, logfilename);
+
+#ifndef _WIN32
+	  // Write data to pipe if it's open
+	  if (pipe_fd >= 0) {
+		  // Check if pipe is ready before writing
+		  int pipe_status = check_pipe_ready(pipe_fd);
+
+		  if (pipe_status == 0) {
+			  // Pipe not ready (buffer full or no reader) - wait for reader
+			  printf("Pipe not ready - waiting for reader to catch up...\n");
+			  int wait_result = wait_for_pipe_reader(pipe_fd);
+			  if (wait_result != 1) {
+				  fprintf(stderr, "Warning: Could not write to pipe\n");
+				  return;
+			  }
+		  } else if (pipe_status < 0) {
+			  fprintf(stderr, "Warning: Pipe error detected, skipping pipe write\n");
+			  return;
+		  }
+
+		  // Pipe is ready, write data
+		  ssize_t bytes_written = write(pipe_fd, inp_buff, received_words * sizeof(uint32_t));
+		  if (bytes_written < 0) {
+			  if (errno == EPIPE) {
+				  fprintf(stderr, "Warning: Broken pipe (reader disconnected)\n");
+			  } else if (errno == EAGAIN || errno == EWOULDBLOCK) {
+				  fprintf(stderr, "Warning: Pipe write would block\n");
+			  } else {
+				  fprintf(stderr, "Warning: Error writing to pipe: %s\n", strerror(errno));
+			  }
+		  } else if (bytes_written < (ssize_t)(received_words * sizeof(uint32_t))) {
+			  printf("Warning: Partial write to pipe: %zd of %zu bytes\n",
+					 bytes_written, received_words * sizeof(uint32_t));
+		  } else {
+			  printf("Written %zd bytes to pipe\n", bytes_written);
+		  }
+	  }
+#endif
   }else if (recv_Err_code == 0){
 	  printf("no data received. timeout\n");
   }else{
@@ -767,33 +976,33 @@ void receive_to_file(t_x502_hnd hnd, char* logfilename, uint32_t* inp_buff, uint
 
 
 
-int main(int argc, char** argv) {
+int main(int argc, char** argv) {
     int32_t err = X502_ERR_OK;
     uint32_t ver;
     t_x502_hnd hnd = NULL;
 
 
-    // читаем имя командного файла из аргументов CLI
-    const char* cmd_filename = "default.cmd";
-    if (argc > 1 && argv[1] != NULL && argv[1][0] != '\0') {
-        cmd_filename = argv[1];
-    }
-
-    // получаем версию библиотеки //
-    ver = X502_GetLibraryVersion();
-    printf("Версия библиотеки: %d.%d.%d\n", (ver >> 24)&0xFF, (ver>>16)&0xFF, (ver>>8)&0xFF);
-    printf("Command file: %s\n", cmd_filename);
-
-    // загружаем состояние из командного файла
-    main_state state;
-    main_state_set_defaults(&state);
-    parse_cmd_file(cmd_filename, &state);
-    // отладочный вывод принятых значений
-    printf("Parsed state: run_mode=%d, BF_mode=%d, BlackFin_mode=%d, run_length=%u, runs_N=%u, run_I=%u, data_path=%s\n",
-           (int)state.run_mode, (int)state.BF_mode, (int)state.BlackFin_mode,
-           state.run_length, state.runs_N, state.run_I, state.data_path);
+    // читаем имя командного файла из аргументов CLI
+    const char* cmd_filename = "default.cmd";
+    if (argc > 1 && argv[1] != NULL && argv[1][0] != '\0') {
+        cmd_filename = argv[1];
+    }
 
-/* Removed unused temporary buffers and FFT/LFSM placeholders */
+    // получаем версию библиотеки //
+    ver = X502_GetLibraryVersion();
+    printf("Версия библиотеки: %d.%d.%d\n", (ver >> 24)&0xFF, (ver>>16)&0xFF, (ver>>8)&0xFF);
+    printf("Command file: %s\n", cmd_filename);
+
+    // загружаем состояние из командного файла
+    main_state state;
+    main_state_set_defaults(&state);
+    parse_cmd_file(cmd_filename, &state);
+    // отладочный вывод принятых значений
+    printf("Parsed state: run_mode=%d, BF_mode=%d, BlackFin_mode=%d, run_length=%u, runs_N=%u, run_I=%u, data_path=%s, save_to_files=%d\n",
+           (int)state.run_mode, (int)state.BF_mode, (int)state.BlackFin_mode,
+           state.run_length, state.runs_N, state.run_I, state.data_path, state.save_to_files);
+
+/* Removed unused temporary buffers and FFT/LFSM placeholders */
 
 
 
@@ -863,8 +1072,8 @@ int main(int argc, char** argv) {
         }
 
 
-        printf("\n\n\n");
-
+        printf("\n\n\n");
+
         //setup ADC:
 
 
@@ -876,6 +1085,13 @@ int main(int argc, char** argv) {
 		streams_start_Err = X502_StreamsStart(hnd);
 		printf("Streams start err: %d \n", streams_start_Err);
 
+#ifndef _WIN32
+		// Initialize named pipe
+		printf("Initializing named pipe: %s\n", state.pipe_path);
+		state.pipe_fd = init_pipe(state.pipe_path);
+#else
+		state.pipe_fd = -1;
+#endif
 
 			if (state.run_mode == RUN_MODE_FINITE){
 				if (state.BF_mode == BF_MODE_TRANSPARENT){
@@ -895,35 +1111,38 @@ int main(int argc, char** argv) {
 		//		for(uint32_t wait_i = 1e6; wait_i; --wait_i){;}
 
 				printf("\nFlushed from receiving buff: %d\n", X502_FlushRcv_buff(hnd));
-
-				state.run_I = 0;
-				char tmp_data_filename[256];
-				struct timespec ts;
-				uint32_t max_total_words = 1000000;
+
+				state.run_I = 0;
+				char tmp_data_filename[256];
+				struct timespec ts;
+				uint32_t max_total_words = 1000000;
 				uint32_t *inp_buff = malloc(1024*100*1024*2*4);
-				uint32_t runs_since_streams_clean = 0;
-				while(state.run_I < state.runs_N){
-					max_total_words = 10000000;
-					timespec_get(&ts, TIME_UTC);
+				uint32_t runs_since_streams_clean = 0;
+				while(state.run_I < state.runs_N){
+					max_total_words = 10000000;
+					timespec_get(&ts, TIME_UTC);
 	//		    sprintf(&tmp_data_filename, "tmp/received_data_%ld.%ld.csv", ts.tv_sec, ts.tv_nsec);
 	//		    sprintf(&logfilename, "tmp/received_data_%ld.%ld.csv", ts.tv_sec, ts.tv_nsec);
 				//sprintf(&logfilename, "data/received_data_%ld.csv", seconds);
-					snprintf(tmp_data_filename, sizeof(tmp_data_filename), "%s/received_data_%ld.%ld.csv", state.data_path, ts.tv_sec, ts.tv_nsec);
-					printf("%u/%u dumping to file: %s\n", (unsigned)state.run_I, (unsigned)state.runs_N, tmp_data_filename);
-					receive_to_file(hnd, tmp_data_filename, inp_buff,  max_total_words, state.run_length);
+					snprintf(tmp_data_filename, sizeof(tmp_data_filename), "%s/received_data_%ld.%ld.csv", state.data_path, ts.tv_sec, ts.tv_nsec);
+					printf("%u/%u dumping to file: %s\n", (unsigned)state.run_I, (unsigned)state.runs_N, tmp_data_filename);
+					receive_to_file(hnd, tmp_data_filename, inp_buff,  max_total_words, state.run_length, state.pipe_fd);
 					if (runs_since_streams_clean >= 10){
 						runs_since_streams_clean = 0;
 						X502_StreamsStop(hnd);
 						X502_StreamsStart(hnd);
 					}
 					state.run_I++;
-					runs_since_streams_clean++;				  }
-				  free(inp_buff);
-					  X502_Close(hnd);
-					  // освобождаем описатель
-				  X502_Free(hnd);
-				  return 0;
-
+					runs_since_streams_clean++;				  }
+				  free(inp_buff);
+#ifndef _WIN32
+				  close_pipe(state.pipe_fd, state.pipe_path);
+#endif
+					  X502_Close(hnd);
+					  // освобождаем описатель
+				  X502_Free(hnd);
+				  return 0;
+
 			}else if (state.run_mode == RUN_MODE_INF){
 				if (state.BF_mode == BF_MODE_TRANSPARENT){
 					printf("\nStart transparent mode\n");
@@ -945,21 +1164,21 @@ int main(int argc, char** argv) {
 
 
 				state.run_I = 0;
-				char tmp_data_filename[256];
+				char tmp_data_filename[256];
 				struct timespec ts;
 				uint32_t max_total_words = 10000000;
 				uint32_t *inp_buff = malloc(1024*100*1024*2*4);
 				uint32_t runs_since_streams_clean = 0;
 				while (1){ //should be infinite. because it is RUN_MODE_INF
-				//while(state.run_I < state.runs_N){
+				//while(state.run_I < state.runs_N){
 					max_total_words = 10000000;
 					timespec_get(&ts, TIME_UTC);
 	//		    sprintf(&tmp_data_filename, "tmp/received_data_%ld.%ld.csv", ts.tv_sec, ts.tv_nsec);
 	//		    sprintf(&logfilename, "tmp/received_data_%ld.%ld.csv", ts.tv_sec, ts.tv_nsec);
 				//sprintf(&logfilename, "data/received_data_%ld.csv", seconds);
-					snprintf(tmp_data_filename, sizeof(tmp_data_filename), "%s/received_data_%ld.%ld.csv", state.data_path, ts.tv_sec, ts.tv_nsec);
-						printf("%u dumping to file: %s\n", (unsigned)state.run_I, tmp_data_filename);
-					receive_to_file(hnd, tmp_data_filename, inp_buff,  max_total_words, state.run_length);
+					snprintf(tmp_data_filename, sizeof(tmp_data_filename), "%s/received_data_%ld.%ld.csv", state.data_path, ts.tv_sec, ts.tv_nsec);
+						printf("%u dumping to file: %s\n", (unsigned)state.run_I, tmp_data_filename);
+					receive_to_file(hnd, tmp_data_filename, inp_buff,  max_total_words, state.run_length, state.pipe_fd);
 					if (runs_since_streams_clean >= 10){
 						runs_since_streams_clean = 0;
 						X502_StreamsStop(hnd);
@@ -969,20 +1188,23 @@ int main(int argc, char** argv) {
 					runs_since_streams_clean++;
 				  }
 				  free(inp_buff);
+#ifndef _WIN32
+				  close_pipe(state.pipe_fd, state.pipe_path);
+#endif
 					  X502_Close(hnd);
 					  // освобождаем описатель
 				  X502_Free(hnd);
 				  return 0;
 
-			}else{ //TEST mode as default
+			}else{ //TEST mode as default
 
 
 
 
 				time_t seconds;
 				time(&seconds);
-				char logfilename[256];
-				snprintf(logfilename, sizeof(logfilename), "%s/received_data_%ld.csv", state.data_path, (long)seconds);
+				char logfilename[256];
+				snprintf(logfilename, sizeof(logfilename), "%s/received_data_%ld.csv", state.data_path, (long)seconds);
 				//logfile_ptr = fopen(logfilename, "w");
 				FILE *logfile_ptr;
 				logfile_ptr = fopen(logfilename, "a");
@@ -1022,7 +1244,7 @@ int main(int argc, char** argv) {
 				uint32_t *inp_buff = malloc(1024*100*1024*2*4);
 				double *adc_data = malloc(1024*1024*sizeof(double));
 				//uint32_t inp_buff[1024*2048] = {0,};
-				/* Removed unused counters */
+				/* Removed unused counters */
 
 
 				insert_marker_to_file(logfilename, "start transparent");
@@ -1035,10 +1257,10 @@ int main(int argc, char** argv) {
 				printf("receiving data...\n");
 
 
-				/* Removed unused readiness checks */
+				/* Removed unused readiness checks */
 
-				uint32_t max_total_words = 100000;
-				/* Removed unused data_receive_trys_counter */
+				uint32_t max_total_words = 100000;
+				/* Removed unused data_receive_trys_counter */
 		//		printf("\nflush TX buff. \n Number of free TX descriptors before flushing:");
 		//		BF_exec_cmd_simple(hnd, 0x8010, 10, 1);
 
@@ -1092,7 +1314,7 @@ int main(int argc, char** argv) {
 				//fprintf(logfile_ptr, "value number; time, sec; adc_value, V\n");
 
 
-				max_total_words = 100000;
+				max_total_words = 100000;
 
 				//printf("\n dbg value:  ");
 				//BF_exec_cmd_simple(hnd, 0x800A, 10, 1);
@@ -1100,7 +1322,7 @@ int main(int argc, char** argv) {
 				struct timespec time_receive_started, time_receive_ended;
 
 				clock_gettime(CLOCK_MONOTONIC, &time_receive_started);
-				receive_to_file(hnd, logfilename, inp_buff,  max_total_words, 10000);
+				receive_to_file(hnd, logfilename, inp_buff,  max_total_words, 10000, state.pipe_fd);
 				clock_gettime(CLOCK_MONOTONIC, &time_receive_ended);
 
 
@@ -1136,7 +1358,7 @@ int main(int argc, char** argv) {
 
 		//		printf("\n dbg value:  ");
 		//		BF_exec_cmd_simple(hnd, 0x800A, 10, 1);
-				receive_to_file(hnd, logfilename, inp_buff,  max_total_words, 10000);
+				receive_to_file(hnd, logfilename, inp_buff,  max_total_words, 10000, state.pipe_fd);
 				printf("\n dbg value:  ");
 				BF_exec_cmd_simple(hnd, 0x800A, 10, 1);