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151 lines
5.4 KiB
151 lines
5.4 KiB
#pragma once
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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 <stdbool.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 <sys/stat.h>
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#include <sys/uio.h>
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#include <time.h>
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#include <unistd.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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#ifndef PAGE_SIZE
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#define PAGE_SIZE (1 << 12)
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#endif
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#define PAGE_ALIGNED __attribute__((aligned(PAGE_SIZE)))
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/* For this family of macros, do NOT pass zero as the pow2 */
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#define round_to_pow2(x, pow2) (((unsigned long)(x)) & (~((pow2)-1)))
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#define round_up_to_pow2(x, pow2) (round_to_pow2(((unsigned long)x) + (pow2)-1, (pow2)))
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#define round_to_page(x) round_to_pow2(x, PAGE_SIZE)
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#define round_up_to_page(x) round_up_to_pow2(x, PAGE_SIZE)
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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 << 19) /* 512KB */
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#define SBOX_MAX_MEM (1L << 32) /* 4GB */
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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
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macros. The code generator compiles in the starting number of wasm pages, and the maximum number of pages If we try
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and allocate more than max_pages, we should fault */
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// TODO: Should this be deleted?
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// extern uint32_t starting_pages;
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// extern uint32_t 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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#define INDIRECT_TABLE_SIZE (1 << 10)
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struct indirect_table_entry {
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uint32_t type_id;
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void * func_pointer;
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};
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/* Cache of Frequently Accessed Members used to avoid pointer chasing */
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struct sandbox_context_cache {
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struct indirect_table_entry *module_indirect_table;
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void * linear_memory_start;
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uint32_t linear_memory_size;
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};
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extern __thread struct sandbox_context_cache local_sandbox_context_cache;
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/* TODO: LOG_TO_FILE logic is untested */
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extern int32_t runtime_log_file_descriptor;
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/* functions in the module to lookup and call per sandbox. */
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typedef int32_t (*mod_main_fn_t)(int32_t a, int32_t 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_libc_fn_t)(int32_t, int32_t);
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/**
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* debuglog is a macro that behaves based on the macros DEBUG and LOG_TO_FILE
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* If DEBUG is not set, debuglog does nothing
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* If DEBUG is set and LOG_TO_FILE is set, debuglog prints to the logfile defined in runtime_log_file_descriptor
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* If DEBUG is set adn LOG_TO_FILE is not set, debuglog prints to STDOUT
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*/
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#ifdef DEBUG
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#ifdef LOG_TO_FILE
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#define debuglog(fmt, ...) \
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dprintf(runtime_log_file_descriptor, "CPU: %02d, Thread: %x> %s: " fmt, sched_getcpu(), pthread_self(), \
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__func__, ##__VA_ARGS__)
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#else /* !LOG_TO_FILE */
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#define debuglog(fmt, ...) \
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printf("CPU: %02d, Thread: 0x%lx> %s: " fmt, sched_getcpu(), pthread_self(), __func__, ##__VA_ARGS__)
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#endif /* LOG_TO_FILE */
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#else /* !DEBUG */
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#define debuglog(fmt, ...)
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#endif /* DEBUG */
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#define HTTP_MAX_HEADER_COUNT 16
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#define HTTP_MAX_HEADER_LENGTH 32
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#define HTTP_MAX_HEADER_VALUE_LENGTH 64
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#define HTTP_RESPONSE_200_OK "HTTP/1.1 200 OK\r\n"
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#define HTTP_RESPONSE_CONTENT_LENGTH "Content-Length: "
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#define HTTP_RESPONSE_CONTENT_LENGTH_TERMINATOR "\r\n\r\n" /* content body follows this */
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#define HTTP_RESPONSE_CONTENT_TYPE "Content-Type: "
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#define HTTP_RESPONSE_CONTENT_TYPE_PLAIN "text/plain"
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#define HTTP_RESPONSE_CONTENT_TYPE_TERMINATOR " \r\n"
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#define JSON_MAX_ELEMENT_COUNT 16
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#define JSON_MAX_ELEMENT_SIZE 1024
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#define LISTENER_THREAD_CORE_ID 0 /* Dedicated Listener Core */
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#define LISTENER_THREAD_MAX_EPOLL_EVENTS 1024
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#define MODULE_DEFAULT_REQUEST_RESPONSE_SIZE (PAGE_SIZE)
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/* Wasm initialization functions generated by the compiler */
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#define MODULE_INITIALIZE_GLOBALS "populate_globals"
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#define MODULE_INITIALIZE_MEMORY "populate_memory"
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#define MODULE_INITIALIZE_TABLE "populate_table"
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#define MODULE_INITIALIZE_LIBC "wasmf___init_libc"
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#define MODULE_MAIN "wasmf_main"
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#define MODULE_MAX_ARGUMENT_COUNT 16
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#define MODULE_MAX_ARGUMENT_SIZE 64
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#define MODULE_MAX_MODULE_COUNT 128
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#define MODULE_MAX_NAME_LENGTH 32
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#define MODULE_MAX_PATH_LENGTH 256
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#define MODULE_MAX_PENDING_CLIENT_REQUESTS 1000
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#define RUNTIME_LOG_FILE "awesome.log"
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#define RUNTIME_READ_WRITE_VECTOR_LENGTH 16
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#define RUNTIME_MAX_SANDBOX_REQUEST_COUNT (1 << 19) /* random! */
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#define SANDBOX_FILE_DESCRIPTOR_PREOPEN_MAGIC (707707707) /* upside down LOLLOLLOL 🤣😂🤣*/
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#define SANDBOX_MAX_IO_HANDLE_COUNT 32
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#define SOFTWARE_INTERRUPT_TIME_TO_START_IN_USEC (10 * 1000) /* 10 ms */
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#define SOFTWARE_INTERRUPT_INTERVAL_DURATION_IN_USEC (5 * 1000) /* 5 ms */
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/* If multicore, use all but the dedicated listener core
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If there are fewer cores than this, main dynamically overrides this and uses all available */
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#define WORKER_THREAD_CORE_COUNT (NCORES > 1 ? NCORES - 1 : NCORES)
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