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test_socket: conditional compile buffer trailer code

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This code is marked as dead when BUF_SZ is a multiple of 4 (current
situation with unit tests)

This hopefully fixes a -Wunreachable-code failure found by Travis CI
This commit is contained in:
Joel Cunningham 2017-03-17 17:12:12 -05:00
parent 0a5a18e703
commit 81e4726607
1 changed files with 5 additions and 3 deletions
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8
test/unit/api/test_sockets.c
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@ -203,6 +203,7 @@ static void test_sockets_msgapi_tcp(int domain)
{
#define BUF_SZ (TCP_SND_BUF/4)
#define TOTAL_DATA_SZ (BUF_SZ*8) /* ~(TCP_SND_BUF*2) that accounts for integer rounding */
#define NEED_TRAILER (BUF_SZ % 4 != 0)
int listnr, s1, s2, i, ret, opt;
int bytes_written, bytes_read;
struct sockaddr_storage addr_storage;
@ -215,7 +216,7 @@ static void test_sockets_msgapi_tcp(int domain)
struct msghdr rmsg;
u8_t * rcv_buf;
int rcv_off;
int rcv_trailer;
int rcv_trailer = 0;
u8_t val;
test_sockets_init_loopback_addr(domain, &addr_storage, &addr_size);
@ -288,13 +289,14 @@ static void test_sockets_msgapi_tcp(int domain)
riovs[i].iov_len = BUF_SZ/4;
}
/* handling trailing bytes if buffer doesn't evenly divide by 4 */
#if NEED_TRAILER
if ((BUF_SZ % 4) != 0) {
riovs[5].iov_base = &rcv_buf[4*(BUF_SZ/4)];
riovs[5].iov_len = BUF_SZ - (4*(BUF_SZ/4));
rcv_trailer = 1;
} else {
rcv_trailer = 0;
}
#endif /* NEED_TRAILER */
/* we use a copy of riovs since we'll be modifying base and len during
receiving. This gives us an easy way to reset the iovs for next recvmsg */
memcpy(riovs_tmp, riovs, sizeof(riovs));