Free (GPLv2) TCP/IP stack developed by TASS Belgium
Dependents: lpc1768-picotcp-demo ZeroMQ_PicoTCP_Publisher_demo TCPSocket_HelloWorld_PicoTCP Pico_TCP_UDP_Test ... more
PicoTCP. Copyright (c) 2013 TASS Belgium NV.
Released under the GNU General Public License, version 2.
Different licensing models may exist, at the sole discretion of the Copyright holders.
Official homepage: http://www.picotcp.com
Bug tracker: https://github.com/tass-belgium/picotcp/issues
Development steps:
initial integration with mbed RTOSgeneric mbed Ethernet driverhigh performance NXP LPC1768 specific Ethernet driverMulti-threading support for mbed RTOSBerkeley sockets and integration with the New Socket APIFork of the apps running on top of the New Socket APIScheduling optimizations- Debugging/benchmarking/testing
Demo application (measuring TCP sender performance):
Import programlpc1768-picotcp-demo
A PicoTCP demo app testing the ethernet throughput on the lpc1768 mbed board.
include/pico_queue.h@131:4758606c9316, 2013-12-16 (annotated)
- Committer:
- TASS Belgium NV
- Date:
- Mon Dec 16 11:25:54 2013 +0100
- Revision:
- 131:4758606c9316
- Parent:
- 110:0ece1bbbd36e
- Child:
- 149:5f4cb161cec3
Syncronized with master branch
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
daniele | 29:1a47b7151851 | 1 | /********************************************************************* |
TASS Belgium NV |
131:4758606c9316 | 2 | PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved. |
TASS Belgium NV |
131:4758606c9316 | 3 | See LICENSE and COPYING for usage. |
daniele | 29:1a47b7151851 | 4 | |
TASS Belgium NV |
131:4758606c9316 | 5 | *********************************************************************/ |
daniele | 29:1a47b7151851 | 6 | #ifndef _INCLUDE_PICO_QUEUE |
daniele | 29:1a47b7151851 | 7 | #define _INCLUDE_PICO_QUEUE |
daniele | 29:1a47b7151851 | 8 | #include <stdint.h> |
daniele | 29:1a47b7151851 | 9 | #include "pico_config.h" |
daniele | 29:1a47b7151851 | 10 | #include "pico_frame.h" |
daniele | 29:1a47b7151851 | 11 | |
daniele | 29:1a47b7151851 | 12 | #define Q_LIMIT 0 |
daniele | 29:1a47b7151851 | 13 | |
daniele | 29:1a47b7151851 | 14 | #ifndef NULL |
daniele | 29:1a47b7151851 | 15 | #define NULL ((void *)0) |
daniele | 29:1a47b7151851 | 16 | #endif |
daniele | 29:1a47b7151851 | 17 | |
daniele | 29:1a47b7151851 | 18 | struct pico_queue { |
TASS Belgium NV |
131:4758606c9316 | 19 | uint32_t frames; |
TASS Belgium NV |
131:4758606c9316 | 20 | uint32_t size; |
TASS Belgium NV |
131:4758606c9316 | 21 | uint32_t max_frames; |
TASS Belgium NV |
131:4758606c9316 | 22 | uint32_t max_size; |
TASS Belgium NV |
131:4758606c9316 | 23 | struct pico_frame *head; |
TASS Belgium NV |
131:4758606c9316 | 24 | struct pico_frame *tail; |
daniele | 29:1a47b7151851 | 25 | #ifdef PICO_SUPPORT_MUTEX |
TASS Belgium NV |
131:4758606c9316 | 26 | void *mutex; |
daniele | 29:1a47b7151851 | 27 | #endif |
TASS Belgium NV |
131:4758606c9316 | 28 | uint8_t shared; |
TASS Belgium NV |
131:4758606c9316 | 29 | uint16_t overhead; |
daniele | 29:1a47b7151851 | 30 | }; |
daniele | 29:1a47b7151851 | 31 | |
daniele | 29:1a47b7151851 | 32 | #ifdef PICO_SUPPORT_MUTEX |
TASS Belgium NV |
131:4758606c9316 | 33 | #define LOCK(x) { \ |
TASS Belgium NV |
131:4758606c9316 | 34 | if (x == NULL) \ |
TASS Belgium NV |
131:4758606c9316 | 35 | x = pico_mutex_init(); \ |
TASS Belgium NV |
131:4758606c9316 | 36 | pico_mutex_lock(x); \ |
daniele | 29:1a47b7151851 | 37 | } |
TASS Belgium NV |
131:4758606c9316 | 38 | #define UNLOCK(x) pico_mutex_unlock(x) |
daniele | 29:1a47b7151851 | 39 | |
TASS Belgium NV |
131:4758606c9316 | 40 | #else |
TASS Belgium NV |
131:4758606c9316 | 41 | #define LOCK(x) do {} while(0) |
TASS Belgium NV |
131:4758606c9316 | 42 | #define UNLOCK(x) do {} while(0) |
daniele | 29:1a47b7151851 | 43 | #endif |
daniele | 29:1a47b7151851 | 44 | |
daniele | 29:1a47b7151851 | 45 | #ifdef PICO_SUPPORT_DEBUG_TOOLS |
daniele | 29:1a47b7151851 | 46 | static void debug_q(struct pico_queue *q) |
daniele | 29:1a47b7151851 | 47 | { |
TASS Belgium NV |
131:4758606c9316 | 48 | struct pico_frame *p = q->head; |
TASS Belgium NV |
131:4758606c9316 | 49 | dbg("%d: ", q->frames); |
TASS Belgium NV |
131:4758606c9316 | 50 | while(p) { |
TASS Belgium NV |
131:4758606c9316 | 51 | dbg("(%p)-->", p); |
TASS Belgium NV |
131:4758606c9316 | 52 | p = p->next; |
TASS Belgium NV |
131:4758606c9316 | 53 | } |
TASS Belgium NV |
131:4758606c9316 | 54 | dbg("X\n"); |
daniele | 29:1a47b7151851 | 55 | } |
daniele | 29:1a47b7151851 | 56 | |
daniele | 29:1a47b7151851 | 57 | #else |
daniele | 29:1a47b7151851 | 58 | |
TASS Belgium NV |
131:4758606c9316 | 59 | #define debug_q(x) do {} while(0) |
daniele | 29:1a47b7151851 | 60 | #endif |
daniele | 29:1a47b7151851 | 61 | |
tass | 70:cd218dd180e5 | 62 | static inline int32_t pico_enqueue(struct pico_queue *q, struct pico_frame *p) |
daniele | 29:1a47b7151851 | 63 | { |
TASS Belgium NV |
131:4758606c9316 | 64 | if ((q->max_frames) && (q->max_frames <= q->frames)) |
TASS Belgium NV |
131:4758606c9316 | 65 | return -1; |
TASS Belgium NV |
131:4758606c9316 | 66 | |
TASS Belgium NV |
131:4758606c9316 | 67 | if ((Q_LIMIT) && (Q_LIMIT < p->buffer_len + q->size)) |
TASS Belgium NV |
131:4758606c9316 | 68 | return -1; |
daniele | 29:1a47b7151851 | 69 | |
TASS Belgium NV |
131:4758606c9316 | 70 | if ((q->max_size) && (q->max_size < (p->buffer_len + q->size))) |
TASS Belgium NV |
131:4758606c9316 | 71 | return -1; |
TASS Belgium NV |
131:4758606c9316 | 72 | |
TASS Belgium NV |
131:4758606c9316 | 73 | if (q->shared) |
TASS Belgium NV |
131:4758606c9316 | 74 | LOCK(q->mutex); |
daniele | 29:1a47b7151851 | 75 | |
TASS Belgium NV |
131:4758606c9316 | 76 | p->next = NULL; |
TASS Belgium NV |
131:4758606c9316 | 77 | if (!q->head) { |
TASS Belgium NV |
131:4758606c9316 | 78 | q->head = p; |
TASS Belgium NV |
131:4758606c9316 | 79 | q->tail = p; |
TASS Belgium NV |
131:4758606c9316 | 80 | q->size = 0; |
TASS Belgium NV |
131:4758606c9316 | 81 | q->frames = 0; |
TASS Belgium NV |
131:4758606c9316 | 82 | } else { |
TASS Belgium NV |
131:4758606c9316 | 83 | q->tail->next = p; |
TASS Belgium NV |
131:4758606c9316 | 84 | q->tail = p; |
TASS Belgium NV |
131:4758606c9316 | 85 | } |
daniele | 29:1a47b7151851 | 86 | |
TASS Belgium NV |
131:4758606c9316 | 87 | q->size += p->buffer_len + q->overhead; |
TASS Belgium NV |
131:4758606c9316 | 88 | q->frames++; |
TASS Belgium NV |
131:4758606c9316 | 89 | debug_q(q); |
TASS Belgium NV |
131:4758606c9316 | 90 | |
TASS Belgium NV |
131:4758606c9316 | 91 | if (q->shared) |
TASS Belgium NV |
131:4758606c9316 | 92 | UNLOCK(q->mutex); |
TASS Belgium NV |
131:4758606c9316 | 93 | |
TASS Belgium NV |
131:4758606c9316 | 94 | return (int32_t)q->size; |
daniele | 29:1a47b7151851 | 95 | } |
daniele | 29:1a47b7151851 | 96 | |
daniele | 29:1a47b7151851 | 97 | static inline struct pico_frame *pico_dequeue(struct pico_queue *q) |
daniele | 29:1a47b7151851 | 98 | { |
TASS Belgium NV |
131:4758606c9316 | 99 | struct pico_frame *p = q->head; |
TASS Belgium NV |
131:4758606c9316 | 100 | if (q->frames < 1) |
TASS Belgium NV |
131:4758606c9316 | 101 | return NULL; |
TASS Belgium NV |
131:4758606c9316 | 102 | |
TASS Belgium NV |
131:4758606c9316 | 103 | if (q->shared) |
TASS Belgium NV |
131:4758606c9316 | 104 | LOCK(q->mutex); |
daniele | 29:1a47b7151851 | 105 | |
TASS Belgium NV |
131:4758606c9316 | 106 | q->head = p->next; |
TASS Belgium NV |
131:4758606c9316 | 107 | q->frames--; |
TASS Belgium NV |
131:4758606c9316 | 108 | q->size -= p->buffer_len - q->overhead; |
TASS Belgium NV |
131:4758606c9316 | 109 | if (q->head == NULL) |
TASS Belgium NV |
131:4758606c9316 | 110 | q->tail = NULL; |
TASS Belgium NV |
131:4758606c9316 | 111 | |
TASS Belgium NV |
131:4758606c9316 | 112 | debug_q(q); |
TASS Belgium NV |
131:4758606c9316 | 113 | p->next = NULL; |
TASS Belgium NV |
131:4758606c9316 | 114 | if (q->shared) |
TASS Belgium NV |
131:4758606c9316 | 115 | UNLOCK(q->mutex); |
TASS Belgium NV |
131:4758606c9316 | 116 | |
TASS Belgium NV |
131:4758606c9316 | 117 | return p; |
daniele | 29:1a47b7151851 | 118 | } |
daniele | 29:1a47b7151851 | 119 | |
daniele | 29:1a47b7151851 | 120 | static inline struct pico_frame *pico_queue_peek(struct pico_queue *q) |
daniele | 29:1a47b7151851 | 121 | { |
TASS Belgium NV |
131:4758606c9316 | 122 | struct pico_frame *p = q->head; |
TASS Belgium NV |
131:4758606c9316 | 123 | if (q->frames < 1) |
TASS Belgium NV |
131:4758606c9316 | 124 | return NULL; |
TASS Belgium NV |
131:4758606c9316 | 125 | |
TASS Belgium NV |
131:4758606c9316 | 126 | debug_q(q); |
TASS Belgium NV |
131:4758606c9316 | 127 | return p; |
daniele | 29:1a47b7151851 | 128 | } |
daniele | 29:1a47b7151851 | 129 | |
daniele | 29:1a47b7151851 | 130 | static inline void pico_queue_empty(struct pico_queue *q) |
daniele | 29:1a47b7151851 | 131 | { |
TASS Belgium NV |
131:4758606c9316 | 132 | struct pico_frame *p = pico_dequeue(q); |
TASS Belgium NV |
131:4758606c9316 | 133 | while(p) { |
TASS Belgium NV |
131:4758606c9316 | 134 | pico_free(p); |
TASS Belgium NV |
131:4758606c9316 | 135 | p = pico_dequeue(q); |
TASS Belgium NV |
131:4758606c9316 | 136 | } |
daniele | 29:1a47b7151851 | 137 | } |
daniele | 29:1a47b7151851 | 138 | |
daniele | 29:1a47b7151851 | 139 | static inline void pico_queue_protect(struct pico_queue *q) |
daniele | 29:1a47b7151851 | 140 | { |
TASS Belgium NV |
131:4758606c9316 | 141 | q->shared = 1; |
daniele | 29:1a47b7151851 | 142 | } |
daniele | 29:1a47b7151851 | 143 | |
daniele | 29:1a47b7151851 | 144 | #endif |