| 1 | #include <libtrace.h> |
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| 2 | #include <stdio.h> |
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| 3 | #include <stdlib.h> |
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| 4 | #include <inttypes.h> |
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| 5 | #include <stdbool.h> |
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| 6 | |
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| 7 | int main(int argc, char *argv[]) |
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| 8 | { |
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| 9 | |
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| 10 | struct libtrace_out_t *output; |
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| 11 | struct libtrace_t **input; |
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| 12 | struct libtrace_packet_t *packet; |
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| 13 | bool *live; |
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| 14 | int i=0; |
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| 15 | |
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| 16 | if (argc<2) { |
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| 17 | printf("Usage: %s outputuri traceuri...\n",argv[0]); |
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| 18 | printf("\n"); |
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| 19 | printf("Merges traces together, each trace gets it's own direction\n"); |
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| 20 | return 1; |
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| 21 | } |
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| 22 | |
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| 23 | output=trace_output_create(argv[1]); |
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| 24 | if (!output) { |
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| 25 | fprintf(stderr,"Unable to open output file %s\n",argv[1]); |
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| 26 | return 1; |
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| 27 | } |
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| 28 | |
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| 29 | input=calloc((argc-2),sizeof(struct libtrace_t *)); |
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| 30 | packet=calloc((argc-2),sizeof(struct libtrace_packet_t)); |
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| 31 | live=calloc((argc-2),sizeof(bool)); |
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| 32 | for(i=0;i<argc-2;++i) { |
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| 33 | struct libtrace_t *f; |
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| 34 | struct libtrace_packet_t p; |
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| 35 | f=trace_create(argv[i+2]); |
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| 36 | input[i]=f; |
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| 37 | if (!input[i]) { |
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| 38 | fprintf(stderr,"Could not read %s\n",argv[i+2]); |
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| 39 | return 1; |
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| 40 | } |
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| 41 | else { |
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| 42 | fprintf(stderr,"Created %s @ %p\n",argv[i+2],input[i]); |
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| 43 | } |
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| 44 | trace_read_packet(f,&p); |
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| 45 | } |
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| 46 | |
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| 47 | while(1) { |
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| 48 | uint64_t oldest_ts=0; |
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| 49 | int oldest=-1; |
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| 50 | for(i=0;i<argc-2;++i) { |
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| 51 | if (!live[i] && input[i]) { |
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| 52 | int ret=trace_read_packet(input[i],&packet[i]); |
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| 53 | if (ret<0) { |
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| 54 | /* Error */ |
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| 55 | perror(argv[i+2]); |
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| 56 | trace_destroy(input[i]); |
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| 57 | input[i]=NULL; |
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| 58 | } |
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| 59 | else if (ret==0) { |
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| 60 | /* EOF */ |
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| 61 | trace_destroy(input[i]); |
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| 62 | input[i]=NULL; |
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| 63 | } |
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| 64 | else |
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| 65 | live[i]=true; |
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| 66 | } |
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| 67 | if (live[i] && |
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| 68 | (oldest==-1 || |
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| 69 | oldest_ts<trace_get_erf_timestamp(&packet[i]))) { |
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| 70 | oldest=i; |
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| 71 | oldest_ts=trace_get_erf_timestamp(&packet[i]); |
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| 72 | } |
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| 73 | } |
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| 74 | /* We have run out of packets! */ |
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| 75 | if (oldest==-1) { |
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| 76 | break; |
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| 77 | } |
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| 78 | |
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| 79 | trace_set_direction(&packet[oldest],oldest); |
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| 80 | trace_write_packet(output,&packet[oldest]); |
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| 81 | live[oldest]=false; |
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| 82 | |
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| 83 | } |
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| 84 | trace_output_destroy(output); |
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| 85 | |
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| 86 | return 0; |
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| 87 | } |
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