_cexit
Remonter à Process.h - Index
Header File
process.h
Category
Process Control Routines
Prototype
void _cexit(void);
Description
Performs exit cleanup without terminating the program.
_cexit performs the same cleanup as exit, closing all files but without terminating the calling process. The _cexit function calls any registered "exit functions" (posted with atexit). Before _cexit returns, it flushes all input/output buffers and closes all streams that were open.
Return Value
None.
Example
#include <windows.h>
#include <process.h>
#include <io.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
void exit_func(void)
{
printf("Exit function called\n\n");
printf("Close Window to return to program... It will beep if able to read from file");
}
int main(void)
{
int fd;
char c;
if ((fd = open("_cexit.c",O_RDONLY)) < 0)
{
printf("Unable to open _cexit.c for reading\n");
return 1;
}
atexit(exit_func);
if (read(fd,&c,1) != 1)
printf("Unable to read from open file handle %d before _cexit\n",fd);
else
printf("Successfully read from open file handle %d before _cexit\n",fd);
_cexit();
if (read(fd,&c,1) == 1)
MessageBeep(0);
return 0;
}
Portability
POSIX | Win32 | ANSI C | ANSI C++ |
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+ |