C++ (Cpp) parse_from_argv Examples

Example #1

File: monitor.c Project: J65mesW/RedPitaya

int main(int argc, char **argv) {
	int fd = -1;
	int retval = EXIT_SUCCESS;

	if(argc < 2) {
		fprintf(stderr,
                        "%s version %s-%s\n"
			"\nUsage:\n"
			"\tread addr: address\n"
                        "\twrite addr: address value\n"
			"\tset slow DAC: -sdac AO0 AO1 AO2 AO3 [V]\n",
                        argv[0], VERSION_STR, REVISION_STR);
		return EXIT_FAILURE;
	}

	if((fd = open("/dev/mem", O_RDWR | O_SYNC)) == -1) FATAL;

	/* Read from command line */
	unsigned long addr;
	unsigned long *val = NULL;
	int access_type = 'w';
	ssize_t val_count = 0;
	parse_from_argv(argc, argv, &addr, &access_type, &val, &val_count);

	/* Map one page */
	map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, addr & ~MAP_MASK);
	if(map_base == (void *) -1) FATAL;
		
	if (addr != 0) {
		if (val_count == 0) {
			read_value(addr);
		}
		else {
			write_values(addr, access_type, val, val_count);
		}
	}
	if (map_base != (void*)(-1)) {
		if(munmap(map_base, MAP_SIZE) == -1) FATAL;
		map_base = (void*)(-1);
	}

	if (map_base != (void*)(-1)) {
		if(munmap(map_base, MAP_SIZE) == -1) FATAL;
	}
	if (fd != -1) {
		close(fd);
	}
	
	return retval;
}

Example #2

File: monitoradvanced.c Project: 1nfused/RemoteAccess

int main(int argc, char **argv) {
	int fd = -1;
	int retval = EXIT_SUCCESS;

	if(argc < 2) {
		fprintf(stderr,
                        "%s version %s-%s\n"
			"\nUsage:\n"
			"\tread addr: address\n"
                        "\twrite addr: address value\n"
			"\tread analog mixed signals: -ams\n"
			"\tset slow DAC: -sdac AO0 AO1 AO2 AO3 [V]\n",
                        argv[0], VERSION_STR, REVISION_STR);
		return EXIT_FAILURE;
	}

	if((fd = open("/dev/mem", O_RDWR | O_SYNC)) == -1) FATAL;

	/* Read from standard input */
	if (strncmp(argv[1], "-ams", 4) == 0) {
		uint32_t addr = c_addrAms;
		amsReg_t* ams=NULL;
		// Map one page
		map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, addr & ~MAP_MASK);
		if(map_base == (void *) -1) FATAL;

		ams = map_base + (addr & MAP_MASK);
		AmsList(ams);

		if (map_base != (void*)(-1)) {
			if(munmap(map_base, MAP_SIZE) == -1) FATAL;
			map_base = (void*)(-1);
		}
	}
	else if (strncmp(argv[1], "-sdac", 5) == 0) {
		uint32_t addr = c_addrAms;
		amsReg_t* ams=NULL;

		double *val = NULL;
		ssize_t val_count = 0;
		parse_from_argv_par(argc, argv, &val, &val_count);

		if(val_count>SLOW_DAC_NUM){
			val_count=SLOW_DAC_NUM;
		}

		// Map one page
		map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, addr & ~MAP_MASK);
		if(map_base == (void *) -1) FATAL;

		ams = map_base + (addr & MAP_MASK);

		if (val_count == 0) {
			DacRead(ams);
		}
		else{
			DacWrite(ams, val, val_count);
		}

		if (map_base != (void*)(-1)) {
			if(munmap(map_base, MAP_SIZE) == -1) FATAL;
			map_base = (void*)(-1);
		}

	}
	else if (strncmp(argv[1], "-", 1) == 0) {
		unsigned long addr;
		unsigned long *val = NULL;
		int access_type = 'w';
		ssize_t val_count = 0;
		while ( parse_from_stdin(&addr, &access_type, &val, &val_count) != -1) {
			if (addr == 0) {
				continue;
			}
			/* Map one page */
			map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, addr & ~MAP_MASK);
			if(map_base == (void *) -1) FATAL;

			if (val_count == 0) {
				read_value(addr);
			}
			else {
				write_values(addr, access_type, val, val_count);
			}
			if (map_base != (void*)(-1)) {
				if(munmap(map_base, MAP_SIZE) == -1) FATAL;
				map_base = (void*)(-1);
			}
#if DEBUG_MONITOR
			printf("addr/type: %lu/%c\n", addr, access_type);

			printf("val (%ld):", val_count);
			for (ssize_t i = 0; i < val_count; ++i) {
				printf("%lu ", val[i]);
			}
			if (val != NULL) {
				free(val);
				val = NULL;
			}
			printf("\n");
#endif
		}
		goto exit;
	}
	/* Read from command line */
	else {
		unsigned long addr;
		unsigned long *val = NULL;
		int access_type = 'w';
		ssize_t val_count = 0;
		parse_from_argv(argc, argv, &addr, &access_type, &val, &val_count);

		/* Map one page */
		map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, addr & ~MAP_MASK);
		if(map_base == (void *) -1) FATAL;
			
		if (addr != 0) {
			if (val_count == 0) {
				read_value(addr);
			}
			else {
				write_values(addr, access_type, val, val_count);
			}
		}
		if (map_base != (void*)(-1)) {
			if(munmap(map_base, MAP_SIZE) == -1) FATAL;
			map_base = (void*)(-1);
		}
#if DEBUG_MONITOR
		printf("addr/type: %lu/%c\n", addr, access_type);

		printf("val (%ld):", val_count);
		for (ssize_t i = 0; i < val_count; ++i) {
			printf("%lu ", val[i]);
		}
		
		if (val != NULL) {
			free(val);
			val = NULL;
		}
		printf("\n");
#endif
	}

exit:

	if (map_base != (void*)(-1)) {
		if(munmap(map_base, MAP_SIZE) == -1) FATAL;
	}
	if (fd != -1) {
		close(fd);
	}
	
	return retval;
}