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1 ********************************************************************
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2 * RFM - Remote File Manager
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3 *
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4 *
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5 * 1 2010/02/20 AAW
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6 * first version - just send ops
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7
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8 nam RFM
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9 ttl Remote File Manager
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10
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11 ifp1
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12 use defsfile
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13 use rfmdefs
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14 use dwdefs.d
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15 endc
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16
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17 tylg set FlMgr+Objct
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18 atrv set ReEnt+rev
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19 rev set 0
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20 edition equ 1
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21
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22 mod eom,RFMName,tylg,atrv,RFMEnt,size
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23
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24
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25 size equ .
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26
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27
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28 RFMName fcs /RFM/
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29 fcb edition
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30
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31
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32
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33 ******************************
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34 *
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35 * file manager entry point
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36 *
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37 * Entry: Y = Path descriptor pointer
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38 * U = Callers register stack pointer
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39 *
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40
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41 RFMEnt lbra create Create path
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42 lbra open Open path
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43 lbra makdir Makdir
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44 lbra chgdir Chgdir
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45 lbra delete Delete
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46 lbra seek Seek
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47 lbra read Read character
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48 lbra write Write character
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49 lbra readln ReadLn
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50 lbra writln WriteLn
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51 lbra getstt Get Status
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52 lbra setstt Set Status
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53 lbra close Close path
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54
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55 create ldb #DW.create
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56 bra create1
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57
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58
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59 open ldb #DW.open
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60 create1
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2453
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61 ldx PD.DEV,y ; get ptr to our device memory
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62 ldx V$STAT,x ; get ptr to our static storage
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63 pshs x,y,u ; save all on stack
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64 stb V.DWCMD,x
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65
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66 * TODO lets not create multiple buffers when multiple open/create on same path
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67 * get system mem
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68 ldd #256
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69 os9 F$SRqMem ; ask for D bytes (# bytes server said is coming)
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70 lbcs open2
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71 stu V.BUF,x
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72
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73 * use PrsNam to validate pathlist and count length
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74 ldu 4,s ; get pointer to caller's registers
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75 ldy R$X,u
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76 sty V.PATHNAME,x
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77 tfr y,x
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78 prsloop os9 F$PrsNam
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79 bcs open2
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80 tfr y,x
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81 anda #$7F
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82 cmpa #PENTIR
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83 bne chkdelim
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84 ldb #E$BPNam
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85 bra openerr
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86 chkdelim cmpa #PDELIM
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87 beq prsloop
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88 * at this point X points to the character AFTER the last character in the name
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89 * update callers R$X
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90 ldu 4,s ; get caller's registers
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91 stx R$X,u
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92
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93 * compute the length of the pathname and save it
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94 tfr x,d
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95 ldx ,s ; get the device memory pointer
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96 subd V.PATHNAME,x
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97 std V.PATHNAMELEN,x ; save the length
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98
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99 * put command byte & path # on stack
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100 lda V.DWCMD,x
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101 ldb PD.PD,y
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102 pshs cc
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103 pshs d ; p# PD.DEV PD Regs
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104
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105 * put rfm op and DW op on stack
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106 lda #OP_VFM
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107 pshs a ; DWOP RFMOP p# PD.DEV PD Regs
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108
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109 leax ,s ; point X to stack
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110 ldy #3 ; 3 bytes to send
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111
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112 ifgt Level-1
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113 ldu <D.DWSubAddr
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114 else
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115 ldu >D.DWSubAddr
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116 endc
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117
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118 orcc #IntMasks
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119 jsr 6,u
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120 leas 3,s ;clean stack PD.DEV PD Regs
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121
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122 * now send path string
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123 * move from caller to our mem
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124
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125 ldx <D.Proc get calling proc desc
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126 lda P$Task,x ; A = callers task # (source)
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127
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128 ldb <D.SysTsk ; B = system task # (dest)
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129
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130 ldx 1,s ; get device mem ptr
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131 ldu V.BUF,x ; get destination pointer in U
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132 ldy V.PATHNAMELEN,x ; get count in Y
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133 ldx V.PATHNAME,x ; get source in X
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134
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135 * F$Move the bytes (seems to work)
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136 os9 F$Move
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137
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138 bcs moverr
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139
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140 * Add carriage return
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141 tfr u,x
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142 tfr y,d
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143 leau d,u
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144 lda #C$CR
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145 sta ,u
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146 leay 1,y
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147
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148 * send to server
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149 ifgt Level-1
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150 ldu <D.DWSubAddr
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151 else
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152 ldu >D.DWSubAddr
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153 endc
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154 jsr 6,u
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155
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156 * read response from server -> B
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157 clr ,-s
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158 leax ,s
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159 ldy #1
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160 jsr 3,u
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161
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162 * pull server's response into B
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163 puls b ; PD.DEV PD Regs
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164 moverr puls cc
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165 tstb
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166 beq open2
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167
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168 openerr coma ; set error
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169 open2 puls x,y,u,pc
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170
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171 makdir lda #DW.makdir
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172 lbra sendit
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173 chgdir lda #DW.chgdir
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174 lbra sendit
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175 delete lda #DW.delete
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176 lbra sendit
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177 seek lda #DW.seek
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178 lbra sendit
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179
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180 read ldb #DW.read
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181 bra read1 ; join readln routine
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182
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183
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184
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185 write lda #DW.write
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186 lbra sendit
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187
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188
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189
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190 readln ldb #DW.readln
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191 read1 ldx PD.DEV,y ; to our static storage
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192 pshs x,y,u
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193
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194 * put path # on stack
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195 lda PD.PD,y
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196 pshs cc
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197 pshs a ; p# PD.DEV PD Regs
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198
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199 * put rfm op and DW op on stack
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200
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201 lda #OP_VFM
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202 pshs d ; DWOP RFMOP p# PD.DEV PD Regs
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203
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204 leax ,s ; point X to stack
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205 ldy #3 ; 3 bytes to send
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206
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207 * set U to dwsub
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208 ifgt Level-1
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209 ldu <D.DWSubAddr
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210 else
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211 ldu >D.DWSubAddr
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212 endc
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213
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214 * send dw op, rfm op, path #
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215 orcc #IntMasks
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216 jsr 6,u
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217 leas 3,s ;clean stack - PD.DEV PD Regs
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218
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219 * put caller's Y on stack (maximum allowed bytes)
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220 ldx 5,s
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221 ldx R$Y,x
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222 pshs x
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223
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224 * send 2 bytes from stack
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225 leax ,s
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226 ldy #2
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227 jsr 6,u
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228
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229 leas 1,s ; leave 1 byte for server response in next section
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230
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231 * read # bytes coming (0 = eof) from server
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232 leax ,s
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233 ldy #1
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234 jsr 3,u
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235
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236 * store size
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237 clra
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238 puls b ;PD.DEV PD Regs
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239
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240
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241 * check for 0
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242 tstb
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243 beq readln1 ; 0 bytes = EOF
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244
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245 * read the data from server if > 0
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246 go_on pshs d ;xfersz PD.DEV PD Regs
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247
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248 * load data from server into mem block
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249 ldx 3,s ; pd.dev
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250 ldx V.BUF,x
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251 ldy ,s ;xfersz
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252 jsr 3,u
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253
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254 * F$Move
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255 * a = my task #
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256 * b = caller's task #
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257 * X = source ptr
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258 * Y = byte count
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259 * U = dest ptr
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260
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261 * move from our mem to caller
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262
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263 puls y ;Y = byte count (already set?) - PD.DEV PD Regs
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264 puls cc
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265
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266 ldx 4,s
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267 ldu R$X,x ; U = caller's X = dest ptr
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268 sty R$Y,x
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269
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270 lda <D.SysTsk ; A = system task #
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271
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272 ldx <D.Proc get calling proc desc
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273 ldb P$Task,x ; B = callers task #
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274
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275 puls x ; pd.dev - PD Regs
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276 ldx V.BUF,x
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277
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278 * F$Move the bytes (seems to work)
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279 os9 F$Move
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280
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281 * assume everything worked (not good)
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282 clrb
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283 *ldy xfersz,pc ; Y is supposed to be set to bytes read.. do we need to set this in the caller's regs?
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284 bra readln2
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285
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286 readln1
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287 puls cc
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288 comb
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289 ldb #E$EOF
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290 leas 2,s ; clean stack down
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291 readln2 puls y,u,pc
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292
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293
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294 writln lda #DW.writln
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295 lbra sendit
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296
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297 *
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298 * I$GetStat Entry Point
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299 *
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300 * Entry:
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301 *
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302 * Exit:
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303 *
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304 * Error: CC Carry set
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305 * B = errcode
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306 *
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307 getstt
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308 lda #DW.getstt
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309 lbsr sendit
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310
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311 ldb R$B,u get function code
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312 beq GstOPT
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313 cmpb #SS.EOF
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314 beq GstEOF
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315 cmpb #SS.Ready
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316 beq GstReady
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317 cmpb #SS.Size
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318 beq GstSize
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319 cmpb #SS.Pos
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320 beq GstPos
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321 cmpb #SS.FD
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322 beq GstFD
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323 cmpb #SS.FDInf
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324 beq GstFDInf
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325 comb
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326 ldb #E$UnkSvc
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327 rts
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328
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329 * SS.OPT
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330 * RBF does nothing here, so we do nothing
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331 GstOPT
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332 rts
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333
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334 * SS.EOF
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335 * Entry A = path
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336 * B = SS.EOF
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337 GstEOF
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338 rts
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339
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340 * SS.Ready - Check for data available on path
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341 * Entry A = path
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342 * B = SS.Ready
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343 GstReady
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344 clr R$B,u always mark no data ready
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345 rts
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346
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347 * SS.Size - Return size of file opened on path
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348 * Entry A = path
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349 * B = SS.SIZ
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350 * Exit X = msw of files size
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351 * U = lsw of files size
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352 GstSize
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353 rts
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354
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355 * SS.Pos - Return the current position in the file
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356 * Entry A = path
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357 * B = SS.Pos
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358 * Exit X = msw of pos
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359 * U = lsw of pos
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360 GstPOS
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361 rts
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362
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363 * SS.FD - Return file descriptor sector
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364 * Entry: A = path
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365 * B = SS.FD
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366 * X = ptr to 256 byte buffer
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367 * Y = # of bytes of FD required
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368
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369 GstFD
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370 rts
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371
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372 * SS.FDInf -
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373 * Entry: A = path
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374 * B = SS.FDInf
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375 * X = ptr to 256 byte buffer
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376 * Y = msb - Length of read
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377 * lsb - MSB of LSN
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378 * U = LSW of LSN
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379 GstFDInf
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380 rts
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381
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382
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383
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384 *
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385 * I$SetStat Entry Point
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386 *
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387 * Entry:
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388 *
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389 * Exit:
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390 *
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391 * Error: CC Carry set
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392 * B = errcode
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393 *
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394 setstt
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395 lda #DW.setstt
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396 lbsr sendit
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397
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398 ldb R$B,u
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399 beq SstOpt
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400 cmpb #SS.Size
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401 beq SstSize
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402 cmpb #SS.FD
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403 beq SstFD
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404 cmpb #SS.Lock
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405 beq SstLock
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406 cmpb #SS.RsBit
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407 beq SstRsBit
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408 cmpb #SS.Attr
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409 beq SstAttr
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410 cmpb #SS.FSig
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411 beq SstFSig
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412 comb
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413 ldb #E$UnkSvc
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414 rts
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415
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416 SstOpt
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417 SstSize
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418 SstFD
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419 SstLock
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420 SstRsBit
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421 SstAttr
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422 SstFSig
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423 rts
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424
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425
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426 close
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427 pshs y,u
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428
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429 * put path # on stack
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430 lda PD.PD,y
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431 pshs a
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432
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433 * put rfm op and DW op on stack
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434 ldb #DW.close
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435 lda #OP_VFM
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436 pshs d
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437
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438 leax ,s ; point X to stack
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439 ldy #3 ; 3 bytes to send
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440 ifgt Level-1
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441 ldu <D.DWSubAddr
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442 else
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443 ldu >D.DWSubAddr
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444 endc
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445
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446 jsr 6,u
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447 leas 2,s ;clean stack (leave 1 byte)
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448
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449 * read server response
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450 leax ,s
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451 ldy #1
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452 jsr 3,u
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453
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454 * free system mem
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455 ldd #256
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456 ldx 1,s ; orig Y
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457 ldx PD.DEV,x
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458 ldu V.BUF,x
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459 os9 F$SRtMem
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460
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2450
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461 puls b ; server sends result code
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462 tstb
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2445
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463 beq close1
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2450
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464 coma ; set error flag if != 0
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465 close1 puls u,y,pc
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2445
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466
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467
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2435
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468 * just send OP_VMF + vfmop
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2446
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469 sendit pshs a,x,y,u
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2435
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470
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2445
|
471 lda #OP_VFM ; load command
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472 pshs a ; command store on stack
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473 leax ,s ; point X to stack
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474 ldy #2 ; 2 byte to send
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475 ifgt Level-1
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476 ldu <D.DWSubAddr
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477 else
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478 ldu >D.DWSubAddr
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479 endc
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2435
|
480
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|
2445
|
481 jsr 6,u
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482 leas 2,s ;clean stack
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|
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483
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|
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484 clrb
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2446
|
485 puls x,y,u,pc
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|
2445
|
486
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|
|
487 emod
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|
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488 eom equ *
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489 end
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490
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