152 lines
2.6 KiB
C
152 lines
2.6 KiB
C
#ifndef OVNI_EMU_H
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#define OVNI_EMU_H
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#include "ovni.h"
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#include <stdio.h>
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/* Debug macros */
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#define ENABLE_DEBUG
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#ifdef ENABLE_DEBUG
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# define dbg(...) fprintf(stderr, __VA_ARGS__);
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#else
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# define dbg(...)
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#endif
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#define err(...) fprintf(stderr, __VA_ARGS__);
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/* Emulated thread runtime status */
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enum ethread_state {
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TH_ST_UNKNOWN,
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TH_ST_RUNNING,
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TH_ST_PAUSED,
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TH_ST_DEAD,
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};
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/* State of each emulated thread */
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struct ovni_ethread {
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/* Emulated thread tid */
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pid_t tid;
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/* Stream file */
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FILE *f;
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enum ethread_state state;
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/* Thread stream */
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struct ovni_stream *stream;
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/* Current cpu */
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struct ovni_cpu *cpu;
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};
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/* State of each emulated process */
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struct ovni_eproc {
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/* Monotonic counter for process index */
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/* TODO: Use pid? */
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int proc;
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/* Path of the process tracedir */
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char dir[PATH_MAX];
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/* Threads */
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size_t nthreads;
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struct ovni_ethread thread[OVNI_MAX_THR];
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};
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/* ----------------------- trace ------------------------ */
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/* State of each loom on post-process */
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struct ovni_loom {
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size_t nprocs;
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struct ovni_eproc proc[OVNI_MAX_PROC];
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};
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struct ovni_stream {
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FILE *f;
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int tid;
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int thread;
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int proc;
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int loom;
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int loaded;
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int active;
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struct ovni_ev last;
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uint64_t lastclock;
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};
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struct ovni_trace {
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int nlooms;
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struct ovni_loom loom[OVNI_MAX_LOOM];
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int nstreams;
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struct ovni_stream *stream;
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};
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/* ------------------ emulation ---------------- */
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enum ovni_cpu_type {
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CPU_REAL,
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CPU_VIRTUAL,
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};
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enum ovni_cpu_state {
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CPU_ST_UNKNOWN,
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CPU_ST_READY,
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};
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struct ovni_cpu {
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/* Physical id */
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int cpu_id;
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/* Position in emu->cpu */
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int index;
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enum ovni_cpu_state state;
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enum ovni_cpu_type type;
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/* The threads the cpu is currently running */
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size_t nthreads;
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struct ovni_ethread *thread[OVNI_MAX_THR];
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};
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struct ovni_emu {
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struct ovni_trace trace;
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/* Physical CPUs */
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int max_ncpus;
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int ncpus;
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struct ovni_cpu cpu[OVNI_MAX_CPU];
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int cpuind[OVNI_MAX_CPU];
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/* Virtual CPU */
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struct ovni_cpu vcpu;
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struct ovni_stream *cur_stream;
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struct ovni_ev *cur_ev;
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struct ovni_loom *cur_loom;
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struct ovni_eproc *cur_proc;
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struct ovni_ethread *cur_thread;
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uint64_t lastclock;
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};
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/* Emulator function declaration */
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void emu_emit(struct ovni_emu *emu);
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void emu_process_ovni_ev(struct ovni_emu *emu);
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int emu_cpu_find_thread(struct ovni_cpu *cpu, struct ovni_ethread *thread);
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void emu_cpu_remove_thread(struct ovni_cpu *cpu, struct ovni_ethread *thread);
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void emu_cpu_add_thread(struct ovni_cpu *cpu, struct ovni_ethread *thread);
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struct ovni_cpu *emu_get_cpu(struct ovni_emu *emu, int cpuid);
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struct ovni_ethread *emu_get_thread(struct ovni_emu *emu, int tid);
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#endif /* OVNI_EMU_H */
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