Initial checkin of tosthreads stuff...

[tinyos-2.x.git] / tos / lib / tosthreads / system / ThreadInfoP.nc

diff --git a/tos/lib/tosthreads/system/ThreadInfoP.nc b/tos/lib/tosthreads/system/ThreadInfoP.nc
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+++ b/tos/lib/tosthreads/system/ThreadInfoP.nc
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+/*
+ * Copyright (c) 2008 Stanford University.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the
+ *   distribution.
+ * - Neither the name of the Stanford University nor the names of
+ *   its contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL STANFORD
+ * UNIVERSITY OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+ 
+/**
+ * @author Kevin Klues <klueska@cs.stanford.edu>
+ */
+
+generic module ThreadInfoP(uint16_t stack_size, uint8_t thread_id) {
+  provides {
+    interface Init;
+    interface ThreadInfo;
+    interface ThreadFunction;
+  }
+  uses {
+    interface Leds;
+  }
+}
+implementation {
+  uint8_t stack[stack_size];
+  thread_t thread_info;
+  
+  void run_thread(void* arg) __attribute__((noinline)) {
+    signal ThreadFunction.signalThreadRun(arg);
+  }
+  
+  command error_t Init.init() {
+    thread_info.next_thread = NULL;
+    thread_info.id = thread_id;
+    thread_info.init_block = NULL;
+    thread_info.stack_ptr = (stack_ptr_t)(STACK_TOP(stack, sizeof(stack)));
+    thread_info.state = TOSTHREAD_STATE_INACTIVE;
+    thread_info.mutex_count = 0;
+    thread_info.start_ptr = run_thread;
+    thread_info.start_arg_ptr = NULL;
+    thread_info.syscall = NULL;
+    return SUCCESS;
+  }
+  
+  async command thread_t* ThreadInfo.get() {
+    return &thread_info;
+  }
+}