| /**************************************************************************** |
| * apps/examples/thttpd/content/tasks/tasks.c |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. The |
| * ASF licenses this file to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the |
| * License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations |
| * under the License. |
| * |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <sched.h> |
| |
| #include <nuttx/sched.h> |
| |
| /**************************************************************************** |
| * Private Data |
| ****************************************************************************/ |
| |
| static const char *g_statenames[] = |
| { |
| "INVALID ", |
| "PENDING ", |
| "READY ", |
| "RUNNING ", |
| "INACTIVE", |
| "WAITSEM ", |
| #ifndef CONFIG_DISABLE_MQUEUE |
| "WAITSIG ", |
| #endif |
| #ifndef CONFIG_DISABLE_MQUEUE |
| "MQNEMPTY", |
| "MQNFULL " |
| #endif |
| }; |
| |
| static const char *g_ttypenames[4] = |
| { |
| "TASK ", |
| "PTHREAD", |
| "KTHREAD", |
| "--?-- " |
| }; |
| |
| static FAR const char *g_policynames[4] = |
| { |
| "FIFO", |
| "RR ", |
| "SPOR", |
| "OTHR" |
| }; |
| |
| /**************************************************************************** |
| * Public Data |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Private Functions |
| ****************************************************************************/ |
| |
| /* NOTEs: |
| * |
| * 1. One limitation in the use of NXFLAT is that functions that are |
| * referenced as a pointer-to-a-function must have global scope. |
| * Otherwise ARM GCC will generate some bad logic. |
| * 2. In general, when called back, there is no guarantee to that PIC |
| * registers will be valid and, unless you take special precautions, it |
| * could be dangerous to reference global variables in the callback |
| * function. |
| */ |
| |
| void show_task(FAR struct tcb_s *tcb, FAR void *arg) |
| { |
| FAR const char *policy; |
| |
| /* Show task/thread status */ |
| |
| policy = g_policynames[(tcb->flags & TCB_FLAG_POLICY_MASK) >> |
| TCB_FLAG_POLICY_SHIFT]; |
| #if CONFIG_TASK_NAME_SIZE > 0 |
| printf("%5d %3d %4s %7s%c%c %8s %s\n", |
| #else |
| printf("%5d %3d %4s %7s%c%c %8s\n", |
| #endif |
| tcb->pid, tcb->sched_priority, policy, |
| g_ttypenames[(tcb->flags & TCB_FLAG_TTYPE_MASK) >> |
| TCB_FLAG_TTYPE_SHIFT], |
| tcb->flags & TCB_FLAG_NONCANCELABLE ? 'N' : ' ', |
| tcb->flags & TCB_FLAG_CANCEL_PENDING ? 'P' : ' ', |
| g_statenames[tcb->task_state] |
| #if CONFIG_TASK_NAME_SIZE > 0 |
| , tcb->name |
| #endif |
| ); |
| } |
| |
| /**************************************************************************** |
| * Public Functions |
| ****************************************************************************/ |
| |
| #ifdef CONFIG_THTTPD_BINFS |
| int tasks_main(int argc, char *argv[]) |
| #else |
| int main(int argc, char *argv[]) |
| #endif |
| { |
| puts( |
| "Content-type: text/html\r\n" |
| "Status: 200/html\r\n" |
| "\r\n" |
| "<html>\r\n" |
| "<head>\r\n" |
| "<title>NuttX Tasks</title>\r\n" |
| "<link rel=\"stylesheet\" type=\"text/css\" href=\"/style.css\">\r\n" |
| "</head>\r\n" |
| "<body bgcolor=\"#fffeec\" text=\"black\">\r\n" |
| "<div class=\"menu\">\r\n" |
| "<div class=\"menubox\"><a href=\"/index.html\">Front page</a></div>\r\n" |
| "<div class=\"menubox\"><a href=\"hello\">Say Hello</a></div>\r\n" |
| "<div class=\"menubox\"><a href=\"tasks\">Tasks</a></div>\r\n" |
| "<br>\r\n" |
| "</div>\r\n" |
| "<div class=\"contentblock\">\r\n" |
| "<pre>\r\n" |
| "PID PRI SCHD TYPE NP STATE NAME\r\n"); |
| |
| nxsched_foreach(show_task, NULL); |
| |
| puts( |
| "</pre>\r\n" |
| "</body>\r\n" |
| "</html>\r\n"); |
| |
| return 0; |
| } |
