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-rw-r--r--qemu/tests/test-iov.c411
1 files changed, 0 insertions, 411 deletions
diff --git a/qemu/tests/test-iov.c b/qemu/tests/test-iov.c
deleted file mode 100644
index 3f25268dd..000000000
--- a/qemu/tests/test-iov.c
+++ /dev/null
@@ -1,411 +0,0 @@
-#include "qemu/osdep.h"
-#include <glib.h>
-#include "qemu-common.h"
-#include "qemu/iov.h"
-#include "qemu/sockets.h"
-
-/* create a randomly-sized iovec with random vectors */
-static void iov_random(struct iovec **iovp, unsigned *iov_cntp)
-{
- unsigned niov = g_test_rand_int_range(3,8);
- struct iovec *iov = g_malloc(niov * sizeof(*iov));
- unsigned i;
- for (i = 0; i < niov; ++i) {
- iov[i].iov_len = g_test_rand_int_range(5,20);
- iov[i].iov_base = g_malloc(iov[i].iov_len);
- }
- *iovp = iov;
- *iov_cntp = niov;
-}
-
-static void iov_free(struct iovec *iov, unsigned niov)
-{
- unsigned i;
- for (i = 0; i < niov; ++i) {
- g_free(iov[i].iov_base);
- }
- g_free(iov);
-}
-
-static void test_iov_bytes(struct iovec *iov, unsigned niov,
- size_t offset, size_t bytes)
-{
- unsigned i;
- size_t j, o;
- unsigned char *b;
- o = 0;
-
- /* we walk over all elements, */
- for (i = 0; i < niov; ++i) {
- b = iov[i].iov_base;
- /* over each char of each element, */
- for (j = 0; j < iov[i].iov_len; ++j) {
- /* counting each of them and
- * verifying that the ones within [offset,offset+bytes)
- * range are equal to the position number (o) */
- if (o >= offset && o < offset + bytes) {
- g_assert(b[j] == (o & 255));
- } else {
- g_assert(b[j] == 0xff);
- }
- ++o;
- }
- }
-}
-
-static void test_to_from_buf_1(void)
-{
- unsigned niov;
- struct iovec *iov;
- size_t sz;
- unsigned char *ibuf, *obuf;
- unsigned i, j, n;
-
- iov_random(&iov, &niov);
-
- sz = iov_size(iov, niov);
-
- ibuf = g_malloc(sz + 8) + 4;
- memcpy(ibuf-4, "aaaa", 4); memcpy(ibuf + sz, "bbbb", 4);
- obuf = g_malloc(sz + 8) + 4;
- memcpy(obuf-4, "xxxx", 4); memcpy(obuf + sz, "yyyy", 4);
-
- /* fill in ibuf with 0123456... */
- for (i = 0; i < sz; ++i) {
- ibuf[i] = i & 255;
- }
-
- for (i = 0; i <= sz; ++i) {
-
- /* Test from/to buf for offset(i) in [0..sz] up to the end of buffer.
- * For last iteration with offset == sz, the procedure should
- * skip whole vector and process exactly 0 bytes */
-
- /* first set bytes [i..sz) to some "random" value */
- n = iov_memset(iov, niov, 0, 0xff, -1);
- g_assert(n == sz);
-
- /* next copy bytes [i..sz) from ibuf to iovec */
- n = iov_from_buf(iov, niov, i, ibuf + i, -1);
- g_assert(n == sz - i);
-
- /* clear part of obuf */
- memset(obuf + i, 0, sz - i);
- /* and set this part of obuf to values from iovec */
- n = iov_to_buf(iov, niov, i, obuf + i, -1);
- g_assert(n == sz - i);
-
- /* now compare resulting buffers */
- g_assert(memcmp(ibuf, obuf, sz) == 0);
-
- /* test just one char */
- n = iov_to_buf(iov, niov, i, obuf + i, 1);
- g_assert(n == (i < sz));
- if (n) {
- g_assert(obuf[i] == (i & 255));
- }
-
- for (j = i; j <= sz; ++j) {
- /* now test num of bytes cap up to byte no. j,
- * with j in [i..sz]. */
-
- /* clear iovec */
- n = iov_memset(iov, niov, 0, 0xff, -1);
- g_assert(n == sz);
-
- /* copy bytes [i..j) from ibuf to iovec */
- n = iov_from_buf(iov, niov, i, ibuf + i, j - i);
- g_assert(n == j - i);
-
- /* clear part of obuf */
- memset(obuf + i, 0, j - i);
-
- /* copy bytes [i..j) from iovec to obuf */
- n = iov_to_buf(iov, niov, i, obuf + i, j - i);
- g_assert(n == j - i);
-
- /* verify result */
- g_assert(memcmp(ibuf, obuf, sz) == 0);
-
- /* now actually check if the iovec contains the right data */
- test_iov_bytes(iov, niov, i, j - i);
- }
- }
- g_assert(!memcmp(ibuf-4, "aaaa", 4) && !memcmp(ibuf+sz, "bbbb", 4));
- g_free(ibuf-4);
- g_assert(!memcmp(obuf-4, "xxxx", 4) && !memcmp(obuf+sz, "yyyy", 4));
- g_free(obuf-4);
- iov_free(iov, niov);
-}
-
-static void test_to_from_buf(void)
-{
- int x;
- for (x = 0; x < 4; ++x) {
- test_to_from_buf_1();
- }
-}
-
-static void test_io(void)
-{
-#ifndef _WIN32
-/* socketpair(PF_UNIX) which does not exist on windows */
-
- int sv[2];
- int r;
- unsigned i, j, k, s, t;
- fd_set fds;
- unsigned niov;
- struct iovec *iov, *siov;
- unsigned char *buf;
- size_t sz;
-
- iov_random(&iov, &niov);
- sz = iov_size(iov, niov);
- buf = g_malloc(sz);
- for (i = 0; i < sz; ++i) {
- buf[i] = i & 255;
- }
- iov_from_buf(iov, niov, 0, buf, sz);
-
- siov = g_malloc(sizeof(*iov) * niov);
- memcpy(siov, iov, sizeof(*iov) * niov);
-
- if (socketpair(PF_UNIX, SOCK_STREAM, 0, sv) < 0) {
- perror("socketpair");
- exit(1);
- }
-
- FD_ZERO(&fds);
-
- t = 0;
- if (fork() == 0) {
- /* writer */
-
- close(sv[0]);
- FD_SET(sv[1], &fds);
- fcntl(sv[1], F_SETFL, O_RDWR|O_NONBLOCK);
- r = g_test_rand_int_range(sz / 2, sz);
- setsockopt(sv[1], SOL_SOCKET, SO_SNDBUF, &r, sizeof(r));
-
- for (i = 0; i <= sz; ++i) {
- for (j = i; j <= sz; ++j) {
- k = i;
- do {
- s = g_test_rand_int_range(0, j - k + 1);
- r = iov_send(sv[1], iov, niov, k, s);
- g_assert(memcmp(iov, siov, sizeof(*iov)*niov) == 0);
- if (r >= 0) {
- k += r;
- t += r;
- usleep(g_test_rand_int_range(0, 30));
- } else if (errno == EAGAIN) {
- select(sv[1]+1, NULL, &fds, NULL, NULL);
- continue;
- } else {
- perror("send");
- exit(1);
- }
- } while(k < j);
- }
- }
- exit(0);
-
- } else {
- /* reader & verifier */
-
- close(sv[1]);
- FD_SET(sv[0], &fds);
- fcntl(sv[0], F_SETFL, O_RDWR|O_NONBLOCK);
- r = g_test_rand_int_range(sz / 2, sz);
- setsockopt(sv[0], SOL_SOCKET, SO_RCVBUF, &r, sizeof(r));
- usleep(500000);
-
- for (i = 0; i <= sz; ++i) {
- for (j = i; j <= sz; ++j) {
- k = i;
- iov_memset(iov, niov, 0, 0xff, -1);
- do {
- s = g_test_rand_int_range(0, j - k + 1);
- r = iov_recv(sv[0], iov, niov, k, s);
- g_assert(memcmp(iov, siov, sizeof(*iov)*niov) == 0);
- if (r > 0) {
- k += r;
- t += r;
- } else if (!r) {
- if (s) {
- break;
- }
- } else if (errno == EAGAIN) {
- select(sv[0]+1, &fds, NULL, NULL, NULL);
- continue;
- } else {
- perror("recv");
- exit(1);
- }
- } while(k < j);
- test_iov_bytes(iov, niov, i, j - i);
- }
- }
- }
-#endif
-}
-
-static void test_discard_front(void)
-{
- struct iovec *iov;
- struct iovec *iov_tmp;
- unsigned int iov_cnt;
- unsigned int iov_cnt_tmp;
- void *old_base;
- size_t size;
- size_t ret;
-
- /* Discard zero bytes */
- iov_random(&iov, &iov_cnt);
- iov_tmp = iov;
- iov_cnt_tmp = iov_cnt;
- ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, 0);
- g_assert(ret == 0);
- g_assert(iov_tmp == iov);
- g_assert(iov_cnt_tmp == iov_cnt);
- iov_free(iov, iov_cnt);
-
- /* Discard more bytes than vector size */
- iov_random(&iov, &iov_cnt);
- iov_tmp = iov;
- iov_cnt_tmp = iov_cnt;
- size = iov_size(iov, iov_cnt);
- ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, size + 1);
- g_assert(ret == size);
- g_assert(iov_cnt_tmp == 0);
- iov_free(iov, iov_cnt);
-
- /* Discard entire vector */
- iov_random(&iov, &iov_cnt);
- iov_tmp = iov;
- iov_cnt_tmp = iov_cnt;
- size = iov_size(iov, iov_cnt);
- ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, size);
- g_assert(ret == size);
- g_assert(iov_cnt_tmp == 0);
- iov_free(iov, iov_cnt);
-
- /* Discard within first element */
- iov_random(&iov, &iov_cnt);
- iov_tmp = iov;
- iov_cnt_tmp = iov_cnt;
- old_base = iov->iov_base;
- size = g_test_rand_int_range(1, iov->iov_len);
- ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, size);
- g_assert(ret == size);
- g_assert(iov_tmp == iov);
- g_assert(iov_cnt_tmp == iov_cnt);
- g_assert(iov_tmp->iov_base == old_base + size);
- iov_tmp->iov_base = old_base; /* undo before g_free() */
- iov_free(iov, iov_cnt);
-
- /* Discard entire first element */
- iov_random(&iov, &iov_cnt);
- iov_tmp = iov;
- iov_cnt_tmp = iov_cnt;
- ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, iov->iov_len);
- g_assert(ret == iov->iov_len);
- g_assert(iov_tmp == iov + 1);
- g_assert(iov_cnt_tmp == iov_cnt - 1);
- iov_free(iov, iov_cnt);
-
- /* Discard within second element */
- iov_random(&iov, &iov_cnt);
- iov_tmp = iov;
- iov_cnt_tmp = iov_cnt;
- old_base = iov[1].iov_base;
- size = iov->iov_len + g_test_rand_int_range(1, iov[1].iov_len);
- ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, size);
- g_assert(ret == size);
- g_assert(iov_tmp == iov + 1);
- g_assert(iov_cnt_tmp == iov_cnt - 1);
- g_assert(iov_tmp->iov_base == old_base + (size - iov->iov_len));
- iov_tmp->iov_base = old_base; /* undo before g_free() */
- iov_free(iov, iov_cnt);
-}
-
-static void test_discard_back(void)
-{
- struct iovec *iov;
- unsigned int iov_cnt;
- unsigned int iov_cnt_tmp;
- void *old_base;
- size_t size;
- size_t ret;
-
- /* Discard zero bytes */
- iov_random(&iov, &iov_cnt);
- iov_cnt_tmp = iov_cnt;
- ret = iov_discard_back(iov, &iov_cnt_tmp, 0);
- g_assert(ret == 0);
- g_assert(iov_cnt_tmp == iov_cnt);
- iov_free(iov, iov_cnt);
-
- /* Discard more bytes than vector size */
- iov_random(&iov, &iov_cnt);
- iov_cnt_tmp = iov_cnt;
- size = iov_size(iov, iov_cnt);
- ret = iov_discard_back(iov, &iov_cnt_tmp, size + 1);
- g_assert(ret == size);
- g_assert(iov_cnt_tmp == 0);
- iov_free(iov, iov_cnt);
-
- /* Discard entire vector */
- iov_random(&iov, &iov_cnt);
- iov_cnt_tmp = iov_cnt;
- size = iov_size(iov, iov_cnt);
- ret = iov_discard_back(iov, &iov_cnt_tmp, size);
- g_assert(ret == size);
- g_assert(iov_cnt_tmp == 0);
- iov_free(iov, iov_cnt);
-
- /* Discard within last element */
- iov_random(&iov, &iov_cnt);
- iov_cnt_tmp = iov_cnt;
- old_base = iov[iov_cnt - 1].iov_base;
- size = g_test_rand_int_range(1, iov[iov_cnt - 1].iov_len);
- ret = iov_discard_back(iov, &iov_cnt_tmp, size);
- g_assert(ret == size);
- g_assert(iov_cnt_tmp == iov_cnt);
- g_assert(iov[iov_cnt - 1].iov_base == old_base);
- iov_free(iov, iov_cnt);
-
- /* Discard entire last element */
- iov_random(&iov, &iov_cnt);
- iov_cnt_tmp = iov_cnt;
- old_base = iov[iov_cnt - 1].iov_base;
- size = iov[iov_cnt - 1].iov_len;
- ret = iov_discard_back(iov, &iov_cnt_tmp, size);
- g_assert(ret == size);
- g_assert(iov_cnt_tmp == iov_cnt - 1);
- iov_free(iov, iov_cnt);
-
- /* Discard within second-to-last element */
- iov_random(&iov, &iov_cnt);
- iov_cnt_tmp = iov_cnt;
- old_base = iov[iov_cnt - 2].iov_base;
- size = iov[iov_cnt - 1].iov_len +
- g_test_rand_int_range(1, iov[iov_cnt - 2].iov_len);
- ret = iov_discard_back(iov, &iov_cnt_tmp, size);
- g_assert(ret == size);
- g_assert(iov_cnt_tmp == iov_cnt - 1);
- g_assert(iov[iov_cnt - 2].iov_base == old_base);
- iov_free(iov, iov_cnt);
-}
-
-int main(int argc, char **argv)
-{
- g_test_init(&argc, &argv, NULL);
- g_test_rand_int();
- g_test_add_func("/basic/iov/from-to-buf", test_to_from_buf);
- g_test_add_func("/basic/iov/io", test_io);
- g_test_add_func("/basic/iov/discard-front", test_discard_front);
- g_test_add_func("/basic/iov/discard-back", test_discard_back);
- return g_test_run();
-}