mirror of https://gerrit.osmocom.org/libosmocore
osmo_io: Make {write,sendto,sendmsg} completion callback optional
There are situations (like multicast datagram transmit) where we don't really care about the result of a write operation, and hence don't need a write completion callback. As the completed message buffer is free'd by core osmo_io, there is no leak in doing so. Change-Id: I0c071a29e508884bac331ada5e510bbfcf440bbf
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2d4d32a86a
commit
0a24e9140d
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@ -397,13 +397,16 @@ void iofd_handle_send_completion(struct osmo_io_fd *iofd, int rc, struct iofd_ms
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/* All other failure and success cases are handled here */
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switch (msghdr->action) {
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case IOFD_ACT_WRITE:
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iofd->io_ops.write_cb(iofd, rc, msg);
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if (iofd->io_ops.write_cb)
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iofd->io_ops.write_cb(iofd, rc, msg);
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break;
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case IOFD_ACT_SENDTO:
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iofd->io_ops.sendto_cb(iofd, rc, msg, &msghdr->osa);
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if (iofd->io_ops.sendto_cb)
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iofd->io_ops.sendto_cb(iofd, rc, msg, &msghdr->osa);
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break;
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case IOFD_ACT_SENDMSG:
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iofd->io_ops.sendmsg_cb(iofd, rc, msg);
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if (iofd->io_ops.sendmsg_cb)
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iofd->io_ops.sendmsg_cb(iofd, rc, msg);
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break;
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default:
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OSMO_ASSERT(0);
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@ -439,10 +442,6 @@ int osmo_iofd_write_msgb(struct osmo_io_fd *iofd, struct msgb *msg)
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}
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OSMO_ASSERT(iofd->mode == OSMO_IO_FD_MODE_READ_WRITE);
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if (OSMO_UNLIKELY(!iofd->io_ops.write_cb)) {
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LOGPIO(iofd, LOGL_ERROR, "write_cb not set, Rejecting msgb\n");
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return -EINVAL;
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}
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struct iofd_msghdr *msghdr = iofd_msghdr_alloc(iofd, IOFD_ACT_WRITE, msg, 0);
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if (!msghdr)
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@ -490,10 +489,6 @@ int osmo_iofd_sendto_msgb(struct osmo_io_fd *iofd, struct msgb *msg, int sendto_
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}
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OSMO_ASSERT(iofd->mode == OSMO_IO_FD_MODE_RECVFROM_SENDTO);
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if (OSMO_UNLIKELY(!iofd->io_ops.sendto_cb)) {
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LOGPIO(iofd, LOGL_ERROR, "sendto_cb not set, Rejecting msgb\n");
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return -EINVAL;
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}
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struct iofd_msghdr *msghdr = iofd_msghdr_alloc(iofd, IOFD_ACT_SENDTO, msg, 0);
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if (!msghdr)
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@ -547,10 +542,6 @@ int osmo_iofd_sendmsg_msgb(struct osmo_io_fd *iofd, struct msgb *msg, int sendms
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}
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OSMO_ASSERT(iofd->mode == OSMO_IO_FD_MODE_RECVMSG_SENDMSG);
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if (OSMO_UNLIKELY(!iofd->io_ops.sendmsg_cb)) {
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LOGPIO(iofd, LOGL_ERROR, "sendmsg_cb not set, Rejecting msgb\n");
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return -EINVAL;
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}
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if (OSMO_UNLIKELY(msgh->msg_namelen > sizeof(msghdr->osa))) {
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LOGPIO(iofd, LOGL_ERROR, "osmo_iofd_sendmsg msg_namelen (%u) > supported %zu bytes\n",
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