C++ (Cpp) ndmchan_setbuf Examples

Example #1

File: ndma_image_stream.c Project: djmitche/ndmjob

	END	========== LOCAL ============	END
	POINT					POINT
			REMOTE
#endif




#include "ndmagents.h"


int
ndmis_reinit_remote (struct ndm_session *sess)
{
	struct ndm_image_stream *is = &sess->plumb.image_stream;

	NDMOS_MACRO_ZEROFILL(&is->remote);

	ndmchan_initialize (&is->remote.listen_chan, "image-stream-listen");
	ndmchan_initialize (&is->remote.sanity_chan, "image-stream-sanity");
	ndmchan_initialize (&is->chan, "image-stream");
	ndmchan_setbuf (&is->chan, is->buf, sizeof is->buf);

	return 0;
}

Example #2

File: ndma_image_stream.c Project: dl5rcw/bareos

	END	========== LOCAL ============	END
	POINT					POINT
			REMOTE
#endif




#include "ndmagents.h"


int
ndmis_reinit_remote (struct ndm_session *sess)
{
	struct ndm_image_stream *is = sess->plumb.image_stream;
	struct ndm_tape_agent * ta = sess->tape_acb;

	NDMOS_MACRO_ZEROFILL (&is->remote);

	ndmchan_initialize (&is->remote.listen_chan, "image-stream-listen");
	ndmchan_initialize (&is->remote.sanity_chan, "image-stream-sanity");
	ndmchan_initialize (&is->chan, "image-stream");
	if (!is->buf) {
		is->buflen = ta->mover_state.record_size;
		is->buf = NDMOS_API_MALLOC (is->buflen);
		if (!is->buf) {
			return -1;
		}
		NDMOS_MACRO_ZEROFILL_SIZE (is->buf, is->buflen);
	}
	ndmchan_setbuf (&is->chan, is->buf, is->buflen);

	return 0;
}

Example #3

File: ndma_data_pfe.c Project: djmitche/ndmjob

int
ndmda_pipe_fork_exec (struct ndm_session *sess, char *cmd, int is_backup)
{
	struct ndm_data_agent *	da = &sess->data_acb;
	struct ndmchan *	ch;
	int			errpipe[2];
	int			datpipe[2];
	int			wrppipe[2];
	int			nullfd;
	int			rc = -1;

	ndmalogf (sess, 0, 2, "Starting %s", cmd);

	nullfd = open ("/dev/null", 2);
	if (nullfd < 0) {
		return rc;
	}

	rc = pipe (errpipe);
	if (rc < 0) {
		close (nullfd);
		return rc;
	}

	rc = pipe (datpipe);
	if (rc < 0) {
		close (nullfd);
		close (errpipe[0]);
		close (errpipe[1]);
		return rc;
	}

	rc = pipe (wrppipe);
	if (rc < 0) {
		close (nullfd);
		close (errpipe[0]);
		close (errpipe[1]);
		close (datpipe[0]);
		close (datpipe[1]);
		return rc;
	}

	rc = fork();
	if (rc < 0) {
		close (nullfd);
		close (errpipe[0]);
		close (errpipe[1]);
		close (datpipe[0]);
		close (datpipe[1]);
		close (wrppipe[0]);
		close (wrppipe[1]);
		return rc;
	}

	if (rc == 0) {
		/* child */
		dup2 (errpipe[1], 2);
		dup2 (wrppipe[1], 3);
		close (errpipe[0]);
		close (wrppipe[0]);

		if (is_backup) {
			dup2 (nullfd, 0);
			dup2 (datpipe[1], 1);
			close (datpipe[0]);
		} else {
			dup2 (datpipe[0], 0);
			dup2 (nullfd, 1);
			close (datpipe[1]);
		}

		/*
		 * 0 -- formatter stdin
		 * 1 -- formatter stdout
		 * 2 -- formatter stderr
		 * 3 -- formatter wrap chan (wraplib.c)
		 */
		for (rc = 4; rc < 100; rc++) {
			close(rc);
		}

		execl ("/bin/sh", "sh", "-c", cmd, NULL);

		fprintf (stderr, "EXEC FAILED %s\n", cmd);
		exit(127);
	}

	/* parent */
	close (nullfd);

	ch = &da->formatter_error;
	ndmchan_initialize (ch, "dfp-error");
	ndmchan_setbuf (ch, da->fmt_error_buf, sizeof da->fmt_error_buf);
	close (errpipe[1]);
	ndmos_condition_pipe_fd (sess, errpipe[0]);
	ndmchan_start_read (ch, errpipe[0]);

	ch = &da->formatter_wrap;
	ndmchan_initialize (ch, "dfp-wrap");
	ndmchan_setbuf (ch, da->fmt_wrap_buf, sizeof da->fmt_wrap_buf);
	close (wrppipe[1]);
	ndmos_condition_pipe_fd (sess, wrppipe[0]);
	ndmchan_start_read (ch, wrppipe[0]);

	ch = &da->formatter_image;
	ndmchan_initialize (ch, "dfp-image");
	ndmchan_setbuf (ch, da->fmt_image_buf, sizeof da->fmt_image_buf);

	if (is_backup) {
		ndmalogf (sess, 0, 2, "backup...");
		close (datpipe[1]);
		ndmos_condition_pipe_fd (sess, datpipe[0]);
		ndmchan_start_read (ch, datpipe[0]);
	} else {
		ndmalogf (sess, 0, 2, "recover...");
		close (datpipe[0]);
		ndmos_condition_pipe_fd (sess, datpipe[1]);
		ndmchan_start_write (ch, datpipe[1]);
	}

	da->formatter_pid = rc;

	return rc;	/* PID */
}