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Added redirection test

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@790 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2008-07-30 00:29:11 +00:00
parent 1c9cadf1c3
commit 378b050ffa
5 changed files with 331 additions and 158 deletions
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2
examples/pipe/Makefile
View File

@ -38,7 +38,7 @@
ASRCS =
AOBJS = $(ASRCS:.S=$(OBJEXT))
CSRCS = pipe_main.c transfer_test.c interlock_test.c
CSRCS = pipe_main.c transfer_test.c interlock_test.c redirect_test.c
COBJS = $(CSRCS:.c=$(OBJEXT))
SRCS = $(ASRCS) $(CSRCS)

15
examples/pipe/interlock_test.c
View File

@ -97,7 +97,10 @@ static void *null_writer(pthread_addr_t pvarg)
/* Then close the FIFO */
printf("null_writer: Closing %s\n", FIFO_PATH2);
close(fd);
if (close(fd) != 0)
{
fprintf(stderr, "null_writer: close failed: %d\n", errno);
}
sleep(5);
printf("null_writer: Returning success\n");
@ -177,7 +180,10 @@ int interlock_test(void)
/* Close the file */
printf("interlock_test: Closing %s\n", FIFO_PATH2);
close(fd);
if (close(fd) != 0)
{
fprintf(stderr, "interlock_test: close failed: %d\n", errno);
}
/* Wait for null_writer thread to complete */
@ -204,7 +210,10 @@ int interlock_test(void)
return 0;
errout_with_file:
close(fd);
if (close(fd) != 0)
{
fprintf(stderr, "interlock_test: close failed: %d\n", errno);
}
errout_with_thread:
pthread_detach(writerid);
pthread_cancel(writerid);

5
examples/pipe/pipe.h
View File

@ -51,6 +51,10 @@
#define FIFO_PATH1 "/tmp/testfifo-1"
#define FIFO_PATH2 "/tmp/testfifo-2"
#ifndef CONFIG_EXAMPLES_PIPE_STACKSIZE
# define CONFIG_EXAMPLES_PIPE_STACKSIZE 1024
#endif
/****************************************************************************
* Public Types
****************************************************************************/
@ -65,5 +69,6 @@
extern int transfer_test(int fdin, int fdout);
extern int interlock_test(void);
extern int redirection_test(void);
#endif /* __EXAMPLES_PIPE_PIPE_H */

193
examples/pipe/pipe_main.c
View File

@ -44,6 +44,7 @@
#include <stdio.h>
#include <unistd.h>
#include <sched.h>
#include <fcntl.h>
#include <errno.h>
@ -65,151 +66,6 @@
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: null_writer
****************************************************************************/
static void *null_writer(pthread_addr_t pvarg)
{
int fd;
/* Wait a bit */
printf("null_writer: started -- sleeping\n");
sleep(5);
/* Then open the FIFO for write access */
printf("null_writer: Opening FIFO for write access\n");
fd = open(FIFO_PATH2, O_WRONLY);
if (fd < 0)
{
fprintf(stderr, "null_writer: Failed to open FIFO %s for writing, errno=%d\n",
FIFO_PATH2, errno);
return (void*)1;
}
/* Wait a bit more */
printf("null_writer: Opened %s for writing -- sleeping\n", FIFO_PATH2);
sleep(5);
/* Then close the FIFO */
printf("null_writer: Closing %s\n", FIFO_PATH2);
close(fd);
sleep(5);
printf("null_writer: Returning success\n");
return (void*)0;
}
/****************************************************************************
* Name: interlock_test
****************************************************************************/
static int interlock_test(void)
{
pthread_t writerid;
void *value;
char data[16];
ssize_t nbytes;
int fd;
int ret;
/* Create a FIFO */
ret = mkfifo(FIFO_PATH2, 0666);
if (ret < 0)
{
fprintf(stderr, "interlock_test: mkfifo failed with errno=%d\n", errno);
return 1;
}
/* Start the null_writer_thread */
printf("interlock_test: Starting null_writer thread\n");
ret = pthread_create(&writerid, NULL, null_writer, (pthread_addr_t)NULL);
if (ret != 0)
{
fprintf(stderr, "interlock_test: Failed to create null_writer thread, error=%d\n", ret);
ret = 2;
goto errout_with_fifo;
}
/* Open one end of the FIFO for reading. This open call should block until the
* null_writer thread opens the other end of the FIFO for writing.
*/
printf("interlock_test: Opening FIFO for read access\n");
fd = open(FIFO_PATH2, O_RDONLY);
if (fd < 0)
{
fprintf(stderr, "interlock_test: Failed to open FIFO %s for reading, errno=%d\n",
FIFO_PATH2, errno);
ret = 3;
goto errout_with_thread;
}
/* Attempt to read one byte from the FIFO. This should return end-of-file because
* the null_writer closes the FIFO without writing anything.
*/
printf("interlock_test: Reading from %s\n", FIFO_PATH2);
nbytes = read(fd, data, 16);
if (nbytes < 0 )
{
fprintf(stderr, "interlock_test: read failed, errno=%d\n", errno);
ret = 4;
goto errout_with_file;
}
else if (ret != 0)
{
fprintf(stderr, "interlock_test: Read %d bytes of data -- aborting: %d\n", nbytes);
ret = 5;
goto errout_with_file;
}
/* Close the file */
printf("interlock_test: Closing %s\n", FIFO_PATH2);
close(fd);
/* Wait for null_writer thread to complete */
printf("interlock_test: Waiting for null_writer thread\n");
ret = pthread_join(writerid, &value);
if (ret != 0)
{
fprintf(stderr, "interlock_test: pthread_join failed, error=%d\n", ret);
ret = 6;
goto errout_with_fifo;
}
else
{
printf("interlock_test: writer returned %d\n", (int)value);
if (value != (void*)0)
{
ret = 7;
goto errout_with_fifo;
}
}
/* unlink(FIFO_PATH2); */
printf("interlock_test: Returning success\n");
return 0;
errout_with_file:
close(fd);
errout_with_thread:
pthread_detach(writerid);
pthread_cancel(writerid);
errout_with_fifo:
/* unlink(FIFO_PATH2); */
printf("interlock_test: Returning %d\n", ret);
return ret;
}
/****************************************************************************
* Public Functions
****************************************************************************/
@ -233,7 +89,7 @@ int user_start(int argc, char *argv[])
/* Test FIFO logic */
printf("user_start: Performing FIFO test\n");
printf("\nuser_start: Performing FIFO test\n");
ret = mkfifo(FIFO_PATH1, 0666);
if (ret < 0)
{
@ -260,16 +116,26 @@ int user_start(int argc, char *argv[])
{
fprintf(stderr, "user_start: Failed to open FIFO %s for reading, errno=%d\n",
FIFO_PATH1, errno);
close(filedes[1]);
if (close(filedes[1]) != 0)
{
fprintf(stderr, "user_start: close failed: %d\n", errno);
}
return 3;
}
/* Then perform the test using those file descriptors */
ret = transfer_test(filedes[0], filedes[1]);
close(filedes[0]);
close(filedes[1]);
if (close(filedes[0]) != 0)
{
fprintf(stderr, "user_start: close failed: %d\n", errno);
}
if (close(filedes[1]) != 0)
{
fprintf(stderr, "user_start: close failed: %d\n", errno);
}
/* unlink(FIFO_PATH1); fails */
if (ret != 0)
{
fprintf(stderr, "user_start: FIFO test FAILED (%d)\n", ret);
@ -279,7 +145,7 @@ int user_start(int argc, char *argv[])
/* Test PIPE logic */
printf("user_start: Performing pipe test\n");
printf("\nuser_start: Performing pipe test\n");
ret = pipe(filedes);
if (ret < 0)
{
@ -290,9 +156,15 @@ int user_start(int argc, char *argv[])
/* Then perform the test using those file descriptors */
ret = transfer_test(filedes[0], filedes[1]);
close(filedes[0]);
close(filedes[1]);
/* unlink(FIFO_PATH1); fails */
if (close(filedes[0]) != 0)
{
fprintf(stderr, "user_start: close failed: %d\n", errno);
}
if (close(filedes[1]) != 0)
{
fprintf(stderr, "user_start: close failed: %d\n", errno);
}
if (ret != 0)
{
fprintf(stderr, "user_start: PIPE test FAILED (%d)\n", ret);
@ -300,7 +172,9 @@ int user_start(int argc, char *argv[])
}
printf("user_start: PIPE test PASSED\n");
/* Then perform the FIFO interlock test */
/* Perform the FIFO interlock test */
printf("\nuser_start: Performing pipe interlock test\n");
ret = interlock_test();
if (ret != 0)
{
@ -309,6 +183,17 @@ int user_start(int argc, char *argv[])
}
printf("user_start: PIPE interlock test PASSED\n");
/* Perform the pipe redirection test */
printf("\nuser_start: Performing redirection test\n");
ret = redirection_test();
if (ret != 0)
{
fprintf(stderr, "user_start: FIFO redirection test FAILED (%d)\n", ret);
return 7;
}
printf("user_start: PIPE redirection test PASSED\n");
fflush(stdout);
return 0;
}

274
examples/pipe/redirect_test.c Normal file
View File

@ -0,0 +1,274 @@
/****************************************************************************
* examples/pipe/redirect_test.c
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sched.h>
#include <errno.h>
#include "pipe.h"
/****************************************************************************
* Definitions
****************************************************************************/
#define READ_SIZE 37
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: redirect_reader
****************************************************************************/
static int redirect_reader(int argc, char *argv[])
{
char buffer[READ_SIZE];
int fd = (int)argv[0];
int ret;
int nbytes = 0;
printf("redirect_reader: started with fd=%s\n", argv[1]);
/* Convert the fd to binary */
fd = atoi(argv[1]);
/* Re-direct the fd to stdin */
ret = dup2(fd, 0);
if (ret != 0)
{
fprintf(stderr, "redirect_reader: dup2 failed: %d\n", errno);
close(fd);
return 1;
}
/* Close the original file descriptor */
ret = close(fd);
if (ret != 0)
{
fprintf(stderr, "redirect_reader: failed to close fd=%d\n", fd);
return 2;
}
/* Then read from stdin until we hit the end of file */
for (;;)
{
/* Read from stdin */
ret = read(0, buffer, READ_SIZE);
if (ret < 0 )
{
fprintf(stderr, "redirect_reader: read failed, errno=%d\n", errno);
return 3;
}
else if (ret == 0)
{
break;
}
nbytes += ret;
/* Echo to stdout */
ret = write(1, buffer, ret);
if (ret < 0)
{
fprintf(stderr, "redirect_reader: read failed, errno=%d\n", errno);
return 4;
}
}
printf("redirect_reader: %d bytes read\n", nbytes);
ret = close(0);
if (ret != 0)
{
fprintf(stderr, "redirect_reader: failed to close fd=%d\n", fd);
return 5;
}
printf("redirect_reader: Returning success\n");
return 0;
}
/****************************************************************************
* Name: redirect_writer
****************************************************************************/
static int redirect_writer(int argc, char *argv[])
{
int fd;
int nbytes = 0;
int ret;
printf("redirect_writer: started with fd=%s\n", argv[1]);
/* Convert the fd to binary */
fd = atoi(argv[1]);
/* Re-direct the fd to stdout */
ret = dup2(fd, 1);
if (ret != 0)
{
fprintf(stderr, "redirect_writer: dup2 failed: %d\n", errno);
return 1;
}
/* Close the original file descriptor */
ret = close(fd);
if (ret != 0)
{
fprintf(stderr, "redirect_reader: failed to close fd=%d\n", fd);
return 2;
}
/* Then write a bunch of stuff to stdout */
nbytes += printf("\nFour score and seven years ago our fathers brought forth on this continent a new nation,\n");
nbytes += printf("conceived in Liberty, and dedicated to the proposition that all men are created equal.\n");
nbytes += printf("\nNow we are engaged in a great civil war, testing whether that nation, or any nation, so\n");
nbytes += printf("conceived and so dedicated, can long endure. We are met on a great battle-field of that war.\n");
nbytes += printf("We have come to dedicate a portion of that field, as a final resting place for those who here\n");
nbytes += printf("gave their lives that that nation might live. It is altogether fitting and proper that we\n");
nbytes += printf("should do this.\n");
nbytes += printf("\nBut, in a larger sense, we can not dedicate—we can not consecrate—we can not hallow—this ground.\n");
nbytes += printf("The brave men, living and dead, who struggled here, have consecrated it, far above our poor power\n");
nbytes += printf("to add or detract. The world will little note, nor long remember what we say here, but it can\n");
nbytes += printf("never forget what they did here. It is for us the living, rather, to be dedicated here to the\n");
nbytes += printf("unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to\n");
nbytes += printf("be here dedicated to the great task remaining before us—that from these honored dead we take\n");
nbytes += printf("increased devotion to that cause for which they gave the last full measure of devotion—that we\n");
nbytes += printf("here highly resolve that these dead shall not have died in vain—that this nation, under God,\n");
nbytes += printf("shall have a new birth of freedom—and that government of the people, by the people, for the\n");
nbytes += printf("people, shall not perish from the earth.\n\n");
printf("redirect_writer: %d bytes read\n", nbytes);
ret = close(1);
if (ret != 0)
{
fprintf(stderr, "redirect_writer: failed to close fd=%d\n", fd);
return 3;
}
printf("redirect_writer: Returning success\n");
return 0;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: redirection_test
****************************************************************************/
int redirection_test(void)
{
const char *argv[2];
char buffer[8];
int readerid;
int writerid;
int filedes[2];
int ret;
/* Create the pipe */
ret = pipe(filedes);
if (ret < 0)
{
fprintf(stderr, "redirection_test: pipe failed with errno=%d\n", errno);
return 5;
}
/* Start redirect_reader thread */
printf("redirection_test: Starting redirect_reader task with fd=%d\n", filedes[0]);
sprintf(buffer, "%d", filedes[0]);
argv[0] = buffer;
argv[1] = NULL;
readerid = task_create("redirect_reader", 50, CONFIG_EXAMPLES_PIPE_STACKSIZE, redirect_reader, argv);
if (readerid < 0)
{
fprintf(stderr, "redirection_test: Failed to create redirect_writer task: %d\n", errno);
return 1;
}
/* Start redirect_writer task */
printf("redirection_test: Starting redirect_writer task with fd=%d\n", filedes[1]);
sprintf(buffer, "%d", filedes[1]);
argv[0] = buffer;
argv[1] = NULL;
writerid = task_create("redirect_writer", 50, CONFIG_EXAMPLES_PIPE_STACKSIZE, redirect_writer, argv);
if (writerid < 0)
{
fprintf(stderr, "redirection_test: Failed to create redirect_writer task: %d\n", errno);
ret = task_delete(readerid);
if (ret != 0)
{
fprintf(stderr, "redirection_test: Failed to delete redirect_reader task %d\n", errno);
}
return 2;
}
/* Wait for redirect_writer thread to complete */
printf("redirection_test: Waiting...\n");
sleep(10);
printf("redirection_test: returning %d\n", ret);
return ret;
}