Mercurial > hg > Game > Cerium

annotate TaskManager/kernel/ppe/MailManager.cc @ 644:ed50fb6c84dd draft

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minor fix
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sat, 21 Nov 2009 10:59:51 +0900
parents 2a611e8d8788
children 7ba4ad4538b1
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include "MailManager.h"
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4
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5 MailManager::MailManager(void)
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6 :mailQueuePool(NULL), freeMailQueue(NULL) {}
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7
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8 MailManager::~MailManager(void) { destroy(); }
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9
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10 int
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11 MailManager::init(int num)
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12 {
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13 if (!mailQueuePool) {
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14 return extend_pool(num);
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15 }
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16 return 0;
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17 }
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18
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19 int
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20 MailManager::extend_pool(int num)
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21 {
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22 MailQueuePtr q;
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23
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24 q = (MailQueuePtr)malloc(sizeof(MailQueue)*(num+1));
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25
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26 if (q == NULL) {
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27 return -1;
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28 }
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29 q->next = mailQueuePool;
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30 mailQueuePool = q;
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31
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32 /* Connect all free queue in the pool */
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33 for (q = mailQueuePool + 1; --num > 0; q++) {
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34 q->next = q + 1;
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35 }
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36 q->next = freeMailQueue;
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37 freeMailQueue = mailQueuePool + 1;
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38
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39 return 0;
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40 }
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41
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42 MailQueuePtr
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57ec231bc8ac long -> memaddr (64 or 32)
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 602
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43 MailManager::create(memaddr data)
50
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44 {
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45 MailQueuePtr q;
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46
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47 if (!freeMailQueue) {
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48 extend_pool(30);
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49 }
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50 q = freeMailQueue;
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51 freeMailQueue = freeMailQueue->next;
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52
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53 q->data = data;
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54 q->next = NULL;
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55
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56 return q;
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57 }
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58
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59 void
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60 MailManager::free(MailQueuePtr q)
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61 {
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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62 #if 0
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63 if (MailManager::find(q,freeMailQueue)) {
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64 fprintf(stderr,"double free %s\n",__FUNCTION__);
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65 return;
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66 }
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parents: 643
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67 #endif
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68 q->next = freeMailQueue;
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69 freeMailQueue = q;
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70 }
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71
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72
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73 void
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74 MailManager::destroy(void)
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75 {
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76 MailQueuePtr q;
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77
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78 q = mailQueuePool;
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79 while (q) {
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80 MailQueuePtr tmp = q->next;
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81 free(q);
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82 q = tmp;
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83 }
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84 freeMailQueue = mailQueuePool = NULL;
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85 }
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86
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87
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88 MailQueuePtr
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89 MailManager::append_mailQueue(MailQueuePtr list, MailQueuePtr q)
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90 {
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91 MailQueuePtr p = list;
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92
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93 if (p == NULL) {
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94 return q;
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95 } else {
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96 while(p->next) p = p->next;
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97 p->next = q;
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98 return list;
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99 }
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100 }
640
ecf056ddd21a SimpeTask on Cell worked.
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 603
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101
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 603
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102 int
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103 MailManager::length(MailQueuePtr list)
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104 {
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105 MailQueuePtr p = list;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 603
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106 MailQueuePtr q = p;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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107 int i = 0;
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108
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109 while(p) {
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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110 i++;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 603
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111 p=p->next;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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112 if (i%2==0) {
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113 q = q->next;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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114 }
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 603
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115 if (p==q)
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 603
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116 return -1; // means loop
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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117 }
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 603
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118 return i;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 603
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119 }
ecf056ddd21a SimpeTask on Cell worked.
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 603
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120
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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121 int
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parents: 640
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122 MailManager::find(MailQueuePtr q,MailQueuePtr list)
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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123 {
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parents: 640
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124 MailQueuePtr p = list;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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125 while(p) {
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 640
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126 if (p==q)
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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127 return -1;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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128 p = p->next;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 640
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129 }
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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130 return 0;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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131 }
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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132
640
ecf056ddd21a SimpeTask on Cell worked.
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 603
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133 /* end */