io: don't leak memory on clean shutdown.

[ccan] / ccan / io / _info

diff --git a/ccan/io/_info b/ccan/io/_info
index 2e0018ad066ace8029873b42c4217aae8ee29b00..6e95e4ab9e18b7b494b4624ea53f64dd0bd95c15 100644 (file)
--- a/ccan/io/_info
+++ b/ccan/io/_info
@@ -11,7 +11,7 @@
  * plans.
  *
  * Example:
- * // Given tr A-Z a-z outputs tr a-z a-z
+ * // Given "tr A-Z a-z" outputs tr a-z a-z
  * #include <ccan/io/io.h>
  * #include <ccan/err/err.h>
  * #include <assert.h>
@@ -61,9 +61,10 @@
  * {
  *     // Remove what we just wrote.
  *     b->start += b->wlen;
+ *     b->wlen = 0;
  *     assert(b->start <= sizeof(b->buf));
  *
- *     // If we wrote something, wake writer.
+ *     // If we wrote something, wake reader.
  *     if (b->wlen != 0)
  *             io_wake(b);
  *
@@ -114,6 +115,7 @@
  *     io_new_conn(NULL, tochild[1], write_out, &to);
  *
  *     // Read from child, write to stdout.
+ *     memset(&from, 0, sizeof(from));
  *     reader = io_new_conn(NULL, fromchild[0], read_in, &from);
  *     io_set_finish(reader, finish, &from);
  *     io_new_conn(NULL, STDOUT_FILENO, write_out, &from);
@@ -133,6 +135,7 @@ int main(int argc, char *argv[])
                return 1;
 
        if (strcmp(argv[1], "depends") == 0) {
+               printf("ccan/container_of\n");
                printf("ccan/list\n");
                printf("ccan/tal\n");
                printf("ccan/time\n");