pintos-doxygen/html/syn-write_8c_source.html

/** Spawns several child processes to write out different parts of

   the contents of a file and waits for them to finish.  Then

   reads back the file and verifies its contents. */


#include <random.h>

#include <stdio.h>

#include <string.h>

#include <syscall.h>

#include "tests/filesys/base/syn-write.h"

#include "tests/lib.h"

#include "tests/main.h"


char buf1[BUF_SIZE];

char buf2[BUF_SIZE];


void

test_main (void)

{

  pid_t children[CHILD_CNT];

  int fd;


  CHECK (create (file_name, sizeof buf1), "create \"%s\"", file_name);


  exec_children ("child-syn-wrt", children, CHILD_CNT);

  wait_children (children, CHILD_CNT);


  CHECK ((fd = open (file_name)) > 1, "open \"%s\"", file_name);

  CHECK (read (fd, buf1, sizeof buf1) > 0, "read \"%s\"", file_name);

  random_bytes (buf2, sizeof buf2);

  compare_bytes (buf1, buf2, sizeof buf1, 0, file_name);

}

create
bool create(const char *file, unsigned initial_size)
Definition: syscall.c:91

open
int open(const char *file)
Definition: syscall.c:103

read
int read(int fd, void *buffer, unsigned size)
Definition: syscall.c:115

pid_t
int pid_t
Process identifier.
Definition: syscall.h:8

compare_bytes
void compare_bytes(const void *read_data_, const void *expected_data_, size_t size, size_t ofs, const char *file_name)
test/lib.h
Definition: lib.c:163

wait_children
void wait_children(pid_t pids[], size_t child_cnt)
Definition: lib.c:94

exec_children
void exec_children(const char *child_name, pid_t pids[], size_t child_cnt)
Definition: lib.c:80

lib.h

CHECK
#define CHECK(SUCCESS,...)
Takes an expression to test for SUCCESS and a message, which may include printf-style arguments.
Definition: lib.h:29

main.h

random_bytes
void random_bytes(void *buf_, size_t size)
Writes SIZE random bytes into BUF.
Definition: random.c:54

random.h

string.h

CHILD_CNT
#define CHILD_CNT
Definition: syn-read.c:14

BUF_SIZE
#define BUF_SIZE
Definition: syn-read.h:4

file_name
static const char file_name[]
tests/filesys/base/syn-read.h
Definition: syn-read.h:5

test_main
void test_main(void)
tests/main.h
Definition: syn-write.c:17

buf1
char buf1[BUF_SIZE]
Spawns several child processes to write out different parts of the contents of a file and waits for t...
Definition: syn-write.c:13

buf2
char buf2[BUF_SIZE]
Definition: syn-write.c:14

syn-write.h