58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/* Copyright (C) 2010, 2011 Tony Garnock-Jones. All rights reserved. */
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#ifndef cmsg_harness_h
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#define cmsg_harness_h
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typedef void (*process_main_t)(void *);
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typedef enum process_state_t_ {
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PROCESS_DEAD = 0,
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PROCESS_RUNNING,
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PROCESS_WAITING
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} process_state_t;
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typedef struct Process {
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process_state_t state;
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int wait_flags;
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void *stack_base;
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ucontext_t context;
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struct Process *link;
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} Process;
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typedef struct IOHandle {
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Process *waiters;
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int fd;
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struct bufferevent *io;
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int eof;
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unsigned short error_direction;
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unsigned short error_kind;
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int error_errno;
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} IOHandle;
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extern IOHandle *stdin_h;
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extern IOHandle *stdout_h;
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extern IOHandle *stderr_h;
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extern Process *current_process;
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extern void yield(void);
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extern Process *spawn(process_main_t f, void *arg);
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extern int nap(long millis); /* 1 for timeout expired; 0 for resumed early */
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extern void suspend(void);
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extern int resume(Process *p);
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extern IOHandle *new_iohandle(int fd);
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extern void delete_iohandle(IOHandle *h);
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extern void iohandle_clear_error(IOHandle *h);
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extern cmsg_bytes_t iohandle_readwait(IOHandle *h, size_t at_least);
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extern void iohandle_drain(IOHandle *h, size_t count);
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extern void iohandle_write(IOHandle *h, cmsg_bytes_t buf);
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extern int iohandle_flush(IOHandle *h);
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extern void iohandle_settimeout(IOHandle *h, int timeout_read, int timeout_write);
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extern void boot_harness(void);
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extern void interrupt_harness(void);
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#endif
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