kopia lustrzana https://github.com/micropython/micropython
extmod/lwip: Change void pointers to unions, include new mphal.h file
Galen Hazelwood
Paul Sokolovsky
rodzic
53ea2b5ce2
commit
af3e45419c
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@ -3,7 +3,7 @@
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#include <py/mpconfig.h>
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#include <py/misc.h>
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#include MICROPY_HAL_H
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#include <py/mphal.h>
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// We're running without an OS for this port. We don't provide any services except light protection.
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#define NO_SYS 1
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153
extmod/modlwip.c
153
extmod/modlwip.c
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@ -32,7 +32,7 @@
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#include "py/objlist.h"
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#include "py/runtime.h"
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#include "py/stream.h"
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#include MICROPY_HAL_H
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#include "py/mphal.h"
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#include "netutils.h"
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@ -183,8 +183,14 @@ static const int error_lookup_table[] = {
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typedef struct _lwip_socket_obj_t {
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mp_obj_base_t base;
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void *pcb;
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void *volatile incoming;
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union {
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struct tcp_pcb *tcp;
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struct udp_pcb *udp;
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} pcb;
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union {
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struct pbuf *pbuf;
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struct tcp_pcb *connection;
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} incoming;
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byte peer[4];
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mp_uint_t peer_port;
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mp_uint_t timeout;
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@ -205,11 +211,11 @@ typedef struct _lwip_socket_obj_t {
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STATIC void _lwip_udp_incoming(void *arg, struct udp_pcb *upcb, struct pbuf *p, ip_addr_t *addr, u16_t port) {
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lwip_socket_obj_t *socket = (lwip_socket_obj_t*)arg;
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if (socket->incoming != NULL) {
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if (socket->incoming.pbuf != NULL) {
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// That's why they call it "unreliable". No room in the inn, drop the packet.
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pbuf_free(p);
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} else {
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socket->incoming = (void*)p;
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socket->incoming.pbuf = p;
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socket->peer_port = (mp_uint_t)port;
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memcpy(&socket->peer, addr, 4);
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}
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@ -222,7 +228,7 @@ STATIC void _lwip_tcp_error(void *arg, err_t err) {
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// Pass the error code back via the connection variable.
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socket->connected = err;
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// If we got here, the lwIP stack either has deallocated or will deallocate the pcb.
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socket->pcb = NULL;
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socket->pcb.tcp = NULL;
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}
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// Callback for tcp connection requests. Error code err is unused. (See tcp.h)
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@ -237,12 +243,12 @@ STATIC err_t _lwip_tcp_connected(void *arg, struct tcp_pcb *tpcb, err_t err) {
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STATIC err_t _lwip_tcp_accept(void *arg, struct tcp_pcb *newpcb, err_t err) {
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lwip_socket_obj_t *socket = (lwip_socket_obj_t*)arg;
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if (socket->incoming != NULL) {
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if (socket->incoming.connection != NULL) {
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// We need to handle this better. This single-level structure makes the
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// backlog setting kind of pointless. FIXME
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return ERR_BUF;
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} else {
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socket->incoming = (void*)newpcb;
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socket->incoming.connection = newpcb;
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return ERR_OK;
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}
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}
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@ -255,11 +261,11 @@ STATIC err_t _lwip_tcp_recv(void *arg, struct tcp_pcb *tcpb, struct pbuf *p, err
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// Other side has closed connection.
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socket->connected = 3;
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return ERR_OK;
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} else if (socket->incoming != NULL) {
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} else if (socket->incoming.pbuf != NULL) {
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// No room in the inn, let LWIP know it's still responsible for delivery later
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return ERR_BUF;
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}
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socket->incoming = (void*)p;
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socket->incoming.pbuf = p;
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return ERR_OK;
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}
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@ -298,11 +304,11 @@ STATIC mp_uint_t lwip_udp_send(lwip_socket_obj_t *socket, const byte *buf, mp_ui
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err_t err;
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if (ip == NULL) {
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err = udp_send((struct udp_pcb*)socket->pcb, p);
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err = udp_send(socket->pcb.udp, p);
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} else {
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ip_addr_t dest;
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IP4_ADDR(&dest, ip[0], ip[1], ip[2], ip[3]);
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err = udp_sendto((struct udp_pcb*)socket->pcb, p, &dest, port);
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err = udp_sendto(socket->pcb.udp, p, &dest, port);
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}
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pbuf_free(p);
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@ -318,18 +324,18 @@ STATIC mp_uint_t lwip_udp_send(lwip_socket_obj_t *socket, const byte *buf, mp_ui
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// Helper function for recv/recvfrom to handle UDP packets
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STATIC mp_uint_t lwip_udp_receive(lwip_socket_obj_t *socket, byte *buf, mp_uint_t len, byte *ip, mp_uint_t *port, int *_errno) {
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if (socket->incoming == NULL) {
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if (socket->incoming.pbuf == NULL) {
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if (socket->timeout != -1) {
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for (mp_uint_t retries = socket->timeout / 100; retries--;) {
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mp_hal_delay_ms(100);
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if (socket->incoming != NULL) break;
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if (socket->incoming.pbuf != NULL) break;
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}
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if (socket->incoming == NULL) {
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if (socket->incoming.pbuf == NULL) {
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*_errno = ETIMEDOUT;
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return -1;
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}
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} else {
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while (socket->incoming == NULL) {
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while (socket->incoming.pbuf == NULL) {
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mp_hal_delay_ms(100);
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}
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}
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@ -340,22 +346,21 @@ STATIC mp_uint_t lwip_udp_receive(lwip_socket_obj_t *socket, byte *buf, mp_uint_
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*port = socket->peer_port;
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}
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struct pbuf *p = (struct pbuf*)socket->incoming;
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struct pbuf *p = socket->incoming.pbuf;
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u16_t result = pbuf_copy_partial(p, buf, ((p->tot_len > len) ? len : p->tot_len), 0);
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pbuf_free(p);
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socket->incoming = NULL;
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socket->incoming.pbuf = NULL;
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return (mp_uint_t) result;
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}
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// Helper function for send/sendto to handle TCP packets
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STATIC mp_uint_t lwip_tcp_send(lwip_socket_obj_t *socket, const byte *buf, mp_uint_t len, int *_errno) {
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struct tcp_pcb *pcb = (struct tcp_pcb *)socket->pcb;
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u16_t available = tcp_sndbuf(pcb);
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u16_t available = tcp_sndbuf(socket->pcb.tcp);
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u16_t write_len = MIN(available, len);
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err_t err = tcp_write(pcb, buf, write_len, TCP_WRITE_FLAG_COPY);
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err_t err = tcp_write(socket->pcb.tcp, buf, write_len, TCP_WRITE_FLAG_COPY);
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if (err != ERR_OK) {
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*_errno = error_lookup_table[-err];
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@ -372,24 +377,24 @@ STATIC mp_uint_t lwip_tcp_receive(lwip_socket_obj_t *socket, byte *buf, mp_uint_
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return 0;
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}
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if (socket->incoming == NULL) {
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if (socket->incoming.pbuf == NULL) {
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if (socket->timeout != -1) {
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for (mp_uint_t retries = socket->timeout / 100; retries--;) {
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mp_hal_delay_ms(100);
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if (socket->incoming != NULL) break;
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if (socket->incoming.pbuf != NULL) break;
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}
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if (socket->incoming == NULL) {
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if (socket->incoming.pbuf == NULL) {
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*_errno = ETIMEDOUT;
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return -1;
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}
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} else {
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while (socket->incoming == NULL) {
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while (socket->incoming.pbuf == NULL) {
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mp_hal_delay_ms(100);
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}
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}
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}
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struct pbuf *p = (struct pbuf *)socket->incoming;
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struct pbuf *p = socket->incoming.pbuf;
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if (socket->leftover_count == 0) {
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socket->leftover_count = p->tot_len;
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@ -401,11 +406,11 @@ STATIC mp_uint_t lwip_tcp_receive(lwip_socket_obj_t *socket, byte *buf, mp_uint_
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socket->leftover_count -= len;
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} else {
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pbuf_free(p);
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socket->incoming = NULL;
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socket->incoming.pbuf = NULL;
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socket->leftover_count = 0;
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}
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tcp_recved((struct tcp_pcb *)socket->pcb, result);
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tcp_recved(socket->pcb.tcp, result);
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return (mp_uint_t) result;
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}
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@ -431,33 +436,33 @@ STATIC mp_obj_t lwip_socket_make_new(mp_obj_t type_in, mp_uint_t n_args,
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}
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switch (socket->type) {
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case MOD_NETWORK_SOCK_STREAM: socket->pcb = (void*)tcp_new(); break;
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case MOD_NETWORK_SOCK_DGRAM: socket->pcb = (void*)udp_new(); break;
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//case MOD_NETWORK_SOCK_RAW: socket->pcb = (void*)raw_new(); break;
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case MOD_NETWORK_SOCK_STREAM: socket->pcb.tcp = tcp_new(); break;
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case MOD_NETWORK_SOCK_DGRAM: socket->pcb.udp = udp_new(); break;
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//case MOD_NETWORK_SOCK_RAW: socket->pcb.raw = raw_new(); break;
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default: nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(EINVAL)));
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}
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if (socket->pcb == NULL) {
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if (socket->pcb.tcp == NULL) {
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nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ENOMEM)));
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}
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switch (socket->type) {
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case MOD_NETWORK_SOCK_STREAM: {
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// Register the socket object as our callback argument.
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tcp_arg((struct tcp_pcb*)socket->pcb, (void*)socket);
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tcp_arg(socket->pcb.tcp, (void*)socket);
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// Register our error callback.
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tcp_err((struct tcp_pcb*)socket->pcb, _lwip_tcp_error);
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tcp_err(socket->pcb.tcp, _lwip_tcp_error);
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break;
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}
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case MOD_NETWORK_SOCK_DGRAM: {
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// Register our receive callback now. Since UDP sockets don't require binding or connection
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// before use, there's no other good time to do it.
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udp_recv((struct udp_pcb*)socket->pcb, _lwip_udp_incoming, (void*)socket);
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udp_recv(socket->pcb.udp, _lwip_udp_incoming, (void*)socket);
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break;
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}
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}
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socket->incoming = NULL;
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socket->incoming.pbuf = NULL;
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socket->timeout = -1;
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socket->connected = 0;
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socket->leftover_count = 0;
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@ -468,31 +473,31 @@ STATIC mp_obj_t lwip_socket_close(mp_obj_t self_in) {
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lwip_socket_obj_t *socket = self_in;
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bool socket_is_listener = false;
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if (socket->pcb == NULL) {
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if (socket->pcb.tcp == NULL) {
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return mp_const_none;
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}
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switch (socket->type) {
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case MOD_NETWORK_SOCK_STREAM: {
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if (((struct tcp_pcb*)socket->pcb)->state == LISTEN) {
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if (socket->pcb.tcp->state == LISTEN) {
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socket_is_listener = true;
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}
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if (tcp_close((struct tcp_pcb*)socket->pcb) != ERR_OK) {
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tcp_abort((struct tcp_pcb*)socket->pcb);
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if (tcp_close(socket->pcb.tcp) != ERR_OK) {
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tcp_abort(socket->pcb.tcp);
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}
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break;
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}
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case MOD_NETWORK_SOCK_DGRAM: udp_remove((struct udp_pcb*)socket->pcb); break;
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//case MOD_NETWORK_SOCK_RAW: raw_remove((struct raw_pcb*)socket->pcb); break;
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case MOD_NETWORK_SOCK_DGRAM: udp_remove(socket->pcb.udp); break;
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//case MOD_NETWORK_SOCK_RAW: raw_remove(socket->pcb.raw); break;
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}
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socket->pcb = NULL;
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socket->pcb.tcp = NULL;
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socket->connected = -16; // EBADF
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if (socket->incoming != NULL) {
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if (socket->incoming.pbuf != NULL) {
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if (!socket_is_listener) {
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pbuf_free((struct pbuf*)socket->incoming);
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pbuf_free(socket->incoming.pbuf);
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} else {
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tcp_abort((struct tcp_pcb*)socket->incoming);
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tcp_abort(socket->incoming.connection);
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}
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socket->incoming = NULL;
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socket->incoming.pbuf = NULL;
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}
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return mp_const_none;
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@ -511,11 +516,11 @@ STATIC mp_obj_t lwip_socket_bind(mp_obj_t self_in, mp_obj_t addr_in) {
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err_t err = ERR_ARG;
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switch (socket->type) {
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case MOD_NETWORK_SOCK_STREAM: {
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err = tcp_bind((struct tcp_pcb*)socket->pcb, &bind_addr, port);
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err = tcp_bind(socket->pcb.tcp, &bind_addr, port);
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break;
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}
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case MOD_NETWORK_SOCK_DGRAM: {
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err = udp_bind((struct udp_pcb*)socket->pcb, &bind_addr, port);
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err = udp_bind(socket->pcb.udp, &bind_addr, port);
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break;
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}
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}
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@ -532,18 +537,18 @@ STATIC mp_obj_t lwip_socket_listen(mp_obj_t self_in, mp_obj_t backlog_in) {
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lwip_socket_obj_t *socket = self_in;
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mp_int_t backlog = mp_obj_get_int(backlog_in);
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if (socket->pcb == NULL) {
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if (socket->pcb.tcp == NULL) {
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nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(EBADF)));
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}
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if (socket->type != MOD_NETWORK_SOCK_STREAM) {
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nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(EOPNOTSUPP)));
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}
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struct tcp_pcb *new_pcb = tcp_listen_with_backlog((struct tcp_pcb*)socket->pcb, (u8_t)backlog);
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struct tcp_pcb *new_pcb = tcp_listen_with_backlog(socket->pcb.tcp, (u8_t)backlog);
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if (new_pcb == NULL) {
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nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ENOMEM)));
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}
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socket->pcb = (void*)new_pcb;
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socket->pcb.tcp = new_pcb;
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tcp_accept(new_pcb, _lwip_tcp_accept);
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return mp_const_none;
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@ -553,30 +558,30 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_2(lwip_socket_listen_obj, lwip_socket_listen);
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STATIC mp_obj_t lwip_socket_accept(mp_obj_t self_in) {
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lwip_socket_obj_t *socket = self_in;
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if (socket->pcb == NULL) {
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if (socket->pcb.tcp == NULL) {
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nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(EBADF)));
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}
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if (socket->type != MOD_NETWORK_SOCK_STREAM) {
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nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(EOPNOTSUPP)));
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}
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// I need to do this because "tcp_accepted", later, is a macro.
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struct tcp_pcb *listener = (struct tcp_pcb*)socket->pcb;
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struct tcp_pcb *listener = socket->pcb.tcp;
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if (listener->state != LISTEN) {
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nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(EINVAL)));
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}
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// accept incoming connection
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if (socket->incoming == NULL) {
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if (socket->incoming.connection == NULL) {
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if (socket->timeout != -1) {
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for (mp_uint_t retries = socket->timeout / 100; retries--;) {
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mp_hal_delay_ms(100);
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if (socket->incoming != NULL) break;
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if (socket->incoming.connection != NULL) break;
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}
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if (socket->incoming == NULL) {
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if (socket->incoming.connection == NULL) {
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nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ETIMEDOUT)));
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}
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} else {
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while (socket->incoming == NULL) {
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while (socket->incoming.connection == NULL) {
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mp_hal_delay_ms(100);
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}
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}
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@ -587,26 +592,26 @@ STATIC mp_obj_t lwip_socket_accept(mp_obj_t self_in) {
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socket2->base.type = (mp_obj_t)&lwip_socket_type;
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// We get a new pcb handle...
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socket2->pcb = socket->incoming;
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socket->incoming = NULL;
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socket2->pcb.tcp = socket->incoming.connection;
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socket->incoming.connection = NULL;
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// ...and set up the new socket for it.
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socket2->domain = MOD_NETWORK_AF_INET;
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socket2->type = MOD_NETWORK_SOCK_STREAM;
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socket2->incoming = NULL;
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socket2->incoming.pbuf = NULL;
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socket2->timeout = socket->timeout;
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socket2->connected = 2;
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socket2->leftover_count = 0;
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tcp_arg((struct tcp_pcb*)socket2->pcb, (void*)socket2);
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tcp_err((struct tcp_pcb*)socket2->pcb, _lwip_tcp_error);
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tcp_recv((struct tcp_pcb*)socket2->pcb, _lwip_tcp_recv);
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tcp_arg(socket2->pcb.tcp, (void*)socket2);
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tcp_err(socket2->pcb.tcp, _lwip_tcp_error);
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tcp_recv(socket2->pcb.tcp, _lwip_tcp_recv);
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tcp_accepted(listener);
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// make the return value
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uint8_t ip[NETUTILS_IPV4ADDR_BUFSIZE];
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memcpy(ip, &(((struct tcp_pcb*)socket2->pcb)->remote_ip), 4);
|
||||
mp_uint_t port = (mp_uint_t)((struct tcp_pcb*)socket2->pcb)->remote_port;
|
||||
memcpy(ip, &(socket2->pcb.tcp->remote_ip), 4);
|
||||
mp_uint_t port = (mp_uint_t)socket2->pcb.tcp->remote_port;
|
||||
mp_obj_tuple_t *client = mp_obj_new_tuple(2, NULL);
|
||||
client->items[0] = socket2;
|
||||
client->items[1] = netutils_format_inet_addr(ip, port, NETUTILS_BIG);
|
||||
|
|
@ -618,7 +623,7 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(lwip_socket_accept_obj, lwip_socket_accept);
|
|||
STATIC mp_obj_t lwip_socket_connect(mp_obj_t self_in, mp_obj_t addr_in) {
|
||||
lwip_socket_obj_t *socket = self_in;
|
||||
|
||||
if (socket->pcb == NULL) {
|
||||
if (socket->pcb.tcp == NULL) {
|
||||
nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(EBADF)));
|
||||
}
|
||||
|
||||
|
|
@ -640,10 +645,10 @@ STATIC mp_obj_t lwip_socket_connect(mp_obj_t self_in, mp_obj_t addr_in) {
|
|||
}
|
||||
}
|
||||
// Register our recieve callback.
|
||||
tcp_recv((struct tcp_pcb*)socket->pcb, _lwip_tcp_recv);
|
||||
tcp_recv(socket->pcb.tcp, _lwip_tcp_recv);
|
||||
// Mark us as "connecting"
|
||||
socket->connected = 1;
|
||||
err = tcp_connect((struct tcp_pcb*)socket->pcb, &dest, port, _lwip_tcp_connected);
|
||||
err = tcp_connect(socket->pcb.tcp, &dest, port, _lwip_tcp_connected);
|
||||
if (err != ERR_OK) {
|
||||
socket->connected = 0;
|
||||
nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(error_lookup_table[-err])));
|
||||
|
|
@ -672,7 +677,7 @@ STATIC mp_obj_t lwip_socket_connect(mp_obj_t self_in, mp_obj_t addr_in) {
|
|||
break;
|
||||
}
|
||||
case MOD_NETWORK_SOCK_DGRAM: {
|
||||
err = udp_connect((struct udp_pcb*)socket->pcb, &dest, port);
|
||||
err = udp_connect(socket->pcb.udp, &dest, port);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
@ -689,7 +694,7 @@ STATIC mp_obj_t lwip_socket_send(mp_obj_t self_in, mp_obj_t buf_in) {
|
|||
lwip_socket_obj_t *socket = self_in;
|
||||
int _errno;
|
||||
|
||||
if (socket->pcb == NULL) {
|
||||
if (socket->pcb.tcp == NULL) {
|
||||
// not connected
|
||||
_errno = error_lookup_table[-(socket->connected)];
|
||||
socket->connected = -16;
|
||||
|
|
@ -722,7 +727,7 @@ STATIC mp_obj_t lwip_socket_recv(mp_obj_t self_in, mp_obj_t len_in) {
|
|||
lwip_socket_obj_t *socket = self_in;
|
||||
int _errno;
|
||||
|
||||
if (socket->pcb == NULL) {
|
||||
if (socket->pcb.tcp == NULL) {
|
||||
// not connected
|
||||
_errno = error_lookup_table[-(socket->connected)];
|
||||
socket->connected = -16;
|
||||
|
|
@ -760,7 +765,7 @@ STATIC mp_obj_t lwip_socket_sendto(mp_obj_t self_in, mp_obj_t data_in, mp_obj_t
|
|||
lwip_socket_obj_t *socket = self_in;
|
||||
int _errno;
|
||||
|
||||
if (socket->pcb == NULL) {
|
||||
if (socket->pcb.tcp == NULL) {
|
||||
// not connected
|
||||
_errno = error_lookup_table[-(socket->connected)];
|
||||
socket->connected = -16;
|
||||
|
|
@ -796,7 +801,7 @@ STATIC mp_obj_t lwip_socket_recvfrom(mp_obj_t self_in, mp_obj_t len_in) {
|
|||
lwip_socket_obj_t *socket = self_in;
|
||||
int _errno;
|
||||
|
||||
if (socket->pcb == NULL) {
|
||||
if (socket->pcb.tcp == NULL) {
|
||||
// not connected
|
||||
_errno = error_lookup_table[-(socket->connected)];
|
||||
socket->connected = -16;
|
||||
|
|
|
|||
Ładowanie…
Reference in New Issue