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| | 1 | implement Throwable_L; |
| | 2 | |
| | 3 | # javal v1.2 generated file: edit with care |
| | 4 | |
| | 5 | include "jni.m"; |
| | 6 | jni : JNI; |
| | 7 | ClassModule, |
| | 8 | JString, |
| | 9 | JArray, |
| | 10 | JArrayI, |
| | 11 | JArrayC, |
| | 12 | JArrayB, |
| | 13 | JArrayS, |
| | 14 | JArrayJ, |
| | 15 | JArrayF, |
| | 16 | JArrayD, |
| | 17 | JArrayZ, |
| | 18 | JArrayJObject, |
| | 19 | JArrayJClass, |
| | 20 | JArrayJString, |
| | 21 | JClass, |
| | 22 | JObject : import jni; |
| | 23 | |
| | 24 | #>> extra pre includes here |
| | 25 | |
| | 26 | #<< |
| | 27 | |
| | 28 | include "Throwable_L.m"; |
| | 29 | |
| | 30 | #>> extra post includes here |
| | 31 | |
| | 32 | #<< |
| | 33 | |
| | 34 | init( jni_p : JNI ) |
| | 35 | { |
| | 36 | # save java native inteface mod instance |
| | 37 | jni = jni_p; |
| | 38 | #>>extra initialization here |
| | 39 | #<< |
| | 40 | } |
| | 41 | |
| | 42 | printStackTrace0_rObject_V( this : ref Throwable_obj, p0 : JObject) |
| | 43 | {#>> |
| | 44 | Value : import jni; |
| | 45 | jldr := jni->jldr; |
| | 46 | Object : import jldr; |
| | 47 | |
| | 48 | if ( this.backtrace != nil ) |
| | 49 | { |
| | 50 | args := array [1] of ref Value; |
| | 51 | args[0] = ref Value.TObject( jni->NewStringObject( string this.backtrace ) ); |
| | 52 | |
| | 53 | (nil,nil):=jni->CallMethod( p0, "println", "(Ljava/lang/String;)V", args ); |
| | 54 | # ignore any erros |
| | 55 | } |
| | 56 | |
| | 57 | }#<< |
| | 58 | |
| | 59 | fillInStackTrace_rThrowable( this : ref Throwable_obj) : ref Throwable_obj |
| | 60 | {#>> |
| | 61 | # attempt to open the local "prog" device (i.e. '#p') |
| | 62 | # and read the call stack into an array of bytes |
| | 63 | pid := jni->sys->pctl(0,nil); |
| | 64 | progfile := "#p/"+ (string pid) +"/stack"; |
| | 65 | fd := jni->sys->open( progfile, Sys->OREAD ); |
| | 66 | if ( fd != nil ) |
| | 67 | { |
| | 68 | # must spin a thread to read my own call-stack |
| | 69 | result := chan of array of byte; # channel for thd results |
| | 70 | spawn ReadCallStack( fd, result ); |
| | 71 | this.backtrace = <- result; # wait for results |
| | 72 | |
| | 73 | } |
| | 74 | else |
| | 75 | this.backtrace = array of byte jni->sys->sprint("could not open %s:%r\n", progfile ); |
| | 76 | |
| | 77 | return( this ); |
| | 78 | }#<< |
| | 79 | |
| | 80 | ####### private functions |
| | 81 | |
| | 82 | |
| | 83 | ReadCallStack( fd : ref Sys->FD, result : chan of array of byte ) |
| | 84 | { |
| | 85 | buf := array[8000] of byte; #about 10 frames |
| | 86 | n := jni->sys->read(fd, buf, len buf - 1); |
| | 87 | fd = nil; |
| | 88 | if(n < 0) |
| | 89 | buf = array of byte jni->sys->sprint("could not read call-stack:%r\n"); |
| | 90 | else |
| | 91 | buf[n] = byte 0; |
| | 92 | |
| | 93 | result <- = buf[:n+1]; |
| | 94 | } |
| | 95 | |