Continually create and destroy contexts and sockets to check for memory leaks. None found. To run download both files into a directory and run: sh many_test.sh

many.c

#include <czmq.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <zmq.h>

#define zcheck_err(eval, condition, fmt, args...)                                                                     \
((void)({                                                                                                             \
    errno = 0;                                                                                                        \
    if (!(condition)) {                                                                                               \
        fprintf(stderr, "%s: " fmt "%s%s\n", prog_name, ##args, errno ? ": " : "", errno ? zmq_strerror(errno) : ""); \
        exit(eval);                                                                                                   \
    }                                                                                                                 \
}))

char *prog_name;

/*
 * Create and destory contexts and sockets
 *
 * Comment out any parts you don't want to test
 */
int main(int argc, char **argv)
{
	zctx_t *ctx;
	void   *soc;

	prog_name = argv[0];

	zcheck_err(EXIT_FAILURE, argc == 2, "Supply address as only argument");

	for (;;) {
		zcheck_err(EXIT_FAILURE, ctx  = zctx_new()                      , "Error creating context"              );
		zcheck_err(EXIT_FAILURE, soc  = zsocket_new(ctx, ZMQ_DEALER)    , "Error creating socket"               );
		zcheck_err(EXIT_FAILURE,   0 == zsocket_connect(soc, argv[1])   , "Error connecting to %s"     , argv[1]);
		zcheck_err(EXIT_FAILURE,   0 == zsocket_disconnect(soc, argv[1]), "Error disconnecting from %s", argv[1]);
		zsocket_destroy(ctx, soc);
		zctx_destroy(&ctx);
	}
	return 0;
}

many_test.sh

#!/bin/sh

trap die INT TERM
die() {
	[ -n "$pid" ] && kill -9 $pid
	printf "$0: $@\n" 1>&2
	exit
}

gcc -lzmq -lczmq -Wall -Werror -o many many.c || die "Error compiling many.c"

./many &
pid=$!

ps $pid > /dev/null 2>&1 || die "Error starting many"

echo "pid is $pid. Press [Enter] to continue."
read unused

while sleep 1; do
	egrep "Vm" /proc/$pid/status | sed ':l; N; $!bl; s/[\n\t ]\+/ /g;'
done

wait