81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
#include "../std.h"
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#include <assert.h>
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#include <stdarg.h>
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#include <stdint.h>
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#include "any.c"
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#include "nolibc.c"
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// void *com_std_alloc(void *ptr, size_t size) {
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// return size != 0 ? realloc(ptr, size) : (free(ptr), NULL);
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// }
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// double com_std_sqrt(double v) { return sqrt(v); }
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// double com_std_fabs(double v) { return fabs(v); }
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// double com_std_sin(double v) { return sin(v); }
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// double com_std_cos(double v) { return cos(v); }
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// com_std_fd com_std_open(char const *path, uint32_t flags) {
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// com_std_assert(flags != 0);
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// char *mode = flags & COM_STD_OPEN_READ && flags & COM_STD_OPEN_WRITE ? "r+"
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// : flags & COM_STD_OPEN_READ ? "r"
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// : "w";
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// return fopen(path, mode);
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// }
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bool com_std_write(com_std_fd fd, void const *data, uint32_t bytes) {
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uint32_t written;
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bool carry_clear;
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__asm__ volatile("int $0x21"
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: "=a"(written), "=@ccnc"(carry_clear)
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: "a"(0x4000), "b"(fd), "c"(bytes), "d"(data)
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: "memory", "cc");
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return !carry_clear && written == bytes;
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}
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// int32_t com_std_read(com_std_fd fd, void *data, uint32_t upto) {
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// com_std_assert(data != NULL && upto != 0);
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// return fread(data, 1, upto, fd);
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// }
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// bool com_std_has_data(com_std_fd fd) {
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// struct pollfd pfd = {.fd = (intptr_t)fd, .events = POLLIN};
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// int ret = poll(&pfd, 1, 0);
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// if (ret > 0) {
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// return pfd.revents & POLLIN;
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// } else
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// return false;
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// }
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// bool com_std_sfwd(com_std_fd fd, uint32_t bytes) {
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// com_std_assert(fd != NULL && bytes != 0);
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// return fseek(fd, bytes, SEEK_CUR) == 0;
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// }
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// com_std_fd com_std_socket(bool isnetwork) {
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// if (!isnetwork) {
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// int sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
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// return fdopen(sockfd, "w+b");
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// } else
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// return NULL;
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// }
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// bool com_std_connect(com_std_fd fd, bool isnetwork, char const *address) {
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// com_std_assert(address != NULL);
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// if (!isnetwork) {
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// struct sockaddr_un addr = {.sun_family = AF_UNIX};
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// __builtin_memcpy(&addr.sun_path, address, com_str_ext_len(address));
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// return connect(fileno(fd), (struct sockaddr *)&addr, sizeof(addr)) == 0;
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// } else
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// return NULL;
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// }
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void com_std_exit(int32_t status) {
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(void)status;
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__asm__ volatile("int $0x21" ::"a"(0x4c00 | (status & 0xff))
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: "memory", "cc");
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__builtin_unreachable();
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}
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// void com_std_close(com_std_fd fd) { fclose(fd); }
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