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130 lines
3.5 KiB
130 lines
3.5 KiB
#ifndef SFRT_TYPES_H
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#define SFRT_TYPES_H
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#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <math.h>
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#include <printf.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/uio.h>
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#define EXPORT __attribute__ ((visibility ("default")))
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#define IMPORT __attribute__ ((visibility ("default")))
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#define INLINE __attribute__((always_inline))
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#define WEAK __attribute__((weak))
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// Type alias's so I don't have to write uint32_t a million times
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typedef signed char i8;
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typedef unsigned char u8;
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typedef int16_t i16;
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typedef uint16_t u16;
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typedef int32_t i32;
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typedef uint32_t u32;
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typedef int64_t i64;
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typedef uint64_t u64;
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// FIXME: per-module configuration?
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#define WASM_PAGE_SIZE (1024 * 64) //64KB
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#define WASM_START_PAGES (1<<8) //16MB
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#define WASM_MAX_PAGES (1<<15) //4GB
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#define WASM_STACK_SIZE (1<<15) // FIXME: fixed size for now.
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// These are per module symbols and I'd need to dlsym for each module. instead just use global constants, see above macros.
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// The code generator compiles in the starting number of wasm pages, and the maximum number of pages
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// If we try and allocate more than max_pages, we should fault
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//extern u32 starting_pages;
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//extern u32 max_pages;
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// The code generator also compiles in stubs that populate the linear memory and function table
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void populate_memory(void);
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void populate_table(void);
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// memory/* also provides the table access functions
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// TODO: Change this to use a compiled in size
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#define INDIRECT_TABLE_SIZE 1024
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struct indirect_table_entry {
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u32 type_id;
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void *func_pointer;
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};
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extern __thread struct indirect_table_entry *module_indirect_table;
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// for sandbox linear memory isolation
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extern __thread void *sandbox_lmbase;
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extern __thread u32 sandbox_lmbound;
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extern i32 logfd;
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// functions in the module to lookup and call per sandbox.
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typedef i32 (*mod_main_fn_t)(i32 a, i32 b);
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typedef void (*mod_glb_fn_t)(void);
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typedef void (*mod_mem_fn_t)(void);
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typedef void (*mod_tbl_fn_t)(void);
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typedef void (*mod_init_libc_fn_t)(i32, i32);
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typedef enum {
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MOD_ARG_MODPATH = 0,
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MOD_ARG_MODPORT,
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MOD_ARG_MODNAME,
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MOD_ARG_MODNARGS,
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MOD_ARG_MAX,
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} mod_argindex_t;
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#define MOD_MAIN_FN "wasmf_main"
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#define MOD_GLB_FN "populate_globals"
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#define MOD_MEM_FN "populate_memory"
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#define MOD_TBL_FN "populate_table"
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#define MOD_INIT_LIBC_FN "wasmf___init_libc"
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#define MOD_MAX_ARGS 16
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#define MOD_ARG_MAX_SZ 64
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#define MOD_MAX 1024
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#define MOD_NAME_MAX 32
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#define MOD_PATH_MAX 256
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#define JSON_ELE_MAX 16
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// FIXME: some naive work-stealing here..
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#define SBOX_PULL_MAX 16
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#define SBOX_MAX_OPEN 32
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#define SBOX_PREOPEN_MAGIC (707707707) // reads lol lol lol upside down
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#define SOFTINT_TIMER_START_USEC (10*1000) //start timers 10 us from now.
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#define SOFTINT_TIMER_PERIOD_USEC (1000*100) // 100ms timer..
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#ifdef DEBUG
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#ifdef NOSTDIO
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#define debuglog(fmt,...) dprintf(logfd, "(%d,%lu) %s: " fmt, sched_getcpu(), pthread_self(), __func__, ## __VA_ARGS__)
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#else
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#define debuglog(fmt,...) printf("(%d,%lu) %s: " fmt, sched_getcpu(), pthread_self(), __func__, ## __VA_ARGS__)
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#endif
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#else
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#define debuglog(fmt,...)
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#endif
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#define GLB_STDOUT "/dev/null"
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#define GLB_STDERR "/dev/null"
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#define GLB_STDIN "/dev/zero"
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#define LOGFILE "awesome.log"
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#define RDWR_VEC_MAX 16
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#define MOD_REQ_CORE 0 // core dedicated to check module requests..
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#define SBOX_NCORES 2 // number of sandboxing threads/cores..
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#endif /* SFRT_TYPES_H */
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