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    Subject[urcu PATCH] test_urcu.c: use gettid()
    Date
    It's probably better to print the tid for each thread, not the pid.

    Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>

    ---
    test_urcu.c | 28 ++++++++++++++++++++++++----
    1 files changed, 24 insertions(+), 4 deletions(-)

    diff --git a/test_urcu.c b/test_urcu.c
    index db0b68c..ea5a784 100644
    --- a/test_urcu.c
    +++ b/test_urcu.c
    @@ -17,6 +17,23 @@
    #include <unistd.h>
    #include <stdio.h>
    #include <assert.h>
    +#include <sys/syscall.h>
    +
    +#if defined(_syscall0)
    +_syscall0(pid_t, gettid)
    +#elif defined(__NR_gettid)
    +static inline pid_t gettid(void)
    +{
    + return syscall(__NR_gettid);
    +}
    +#else
    +#warning "use pid as tid"
    +static inline pid_t gettid(void)
    +{
    + return getpid();
    +}
    +#endif
    +
    #include "urcu.h"

    struct test_array {
    @@ -36,8 +53,8 @@ void *thr_reader(void *arg)
    int qparity, i, j;
    struct test_array *local_ptr;

    - printf("thread %s, thread id : %lu, pid %lu\n",
    - "reader", pthread_self(), (unsigned long)getpid());
    + printf("thread %s, thread id : %lx, tid %lu\n",
    + "reader", pthread_self(), (unsigned long)gettid());
    sleep(2);

    urcu_register_thread();
    @@ -66,8 +83,8 @@ void *thr_writer(void *arg)
    int i;
    struct test_array *new, *old;

    - printf("thread %s, thread id : %lu, pid %lu\n",
    - "writer", pthread_self(), (unsigned long)getpid());
    + printf("thread %s, thread id : %lx, tid %lu\n",
    + "writer", pthread_self(), (unsigned long)gettid());
    sleep(2);

    for (i = 0; i < 10000000; i++) {
    @@ -104,6 +121,9 @@ int main()
    void *tret;
    int i;

    + printf("thread %-6s, thread id : %lx, tid %lu\n",
    + "main", pthread_self(), (unsigned long)gettid());
    +
    for (i = 0; i < NR_READ; i++) {
    err = pthread_create(&tid_reader[i], NULL, thr_reader, NULL);
    if (err != 0)
    --
    tg: (24316d1..) bw/use-gettid (depends on: master)

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      Last update: 2009-02-06 19:53    [W:0.023 / U:149.992 seconds]
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