source: benchmark/io/http/protocol.cfa @ ba77750

arm-ehenumforall-pointer-decayjacob/cs343-translationnew-ast-unique-exprpthread-emulationqualifiedEnum
Last change on this file since ba77750 was ba77750, checked in by Thierry Delisle <tdelisle@…>, 23 months ago

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1#include "protocol.hfa"
2
3#define _GNU_SOURCE
4extern "C" {
5        #include <fcntl.h>
6}
7#include <iofwd.hfa>
8
9#include <assert.h>
10// #include <stdio.h> // Don't use stdio.h, too slow to compile
11extern "C" {
12      int snprintf ( char * s, size_t n, const char * format, ... );
13        #include <linux/io_uring.h>
14}
15#include <string.h>
16#include <errno.h>
17
18#include "options.hfa"
19
20const char * volatile date = 0p;
21
22const char * http_msgs[] = {
23        "HTTP/1.1 200 OK\nServer: HttoForall\nDate: %s \nContent-Type: text/plain\nContent-Length: %zu \n\n",
24        "HTTP/1.1 400 Bad Request\nServer: HttoForall\nDate: %s \nContent-Type: text/plain\nContent-Length: 0 \n\n",
25        "HTTP/1.1 404 Not Found\nServer: HttoForall\nDate: %s \nContent-Type: text/plain\nContent-Length: 0 \n\n",
26        "HTTP/1.1 413 Payload Too Large\nServer: HttoForall\nDate: %s \nContent-Type: text/plain\nContent-Length: 0 \n\n",
27        "HTTP/1.1 414 URI Too Long\nServer: HttoForall\nDate: %s \nContent-Type: text/plain\nContent-Length: 0 \n\n",
28};
29
30_Static_assert( KNOWN_CODES == (sizeof(http_msgs ) / sizeof(http_msgs [0])));
31
32const int http_codes[] = {
33        200,
34        400,
35        404,
36        413,
37        414,
38};
39
40_Static_assert( KNOWN_CODES == (sizeof(http_codes) / sizeof(http_codes[0])));
41
42int code_val(HttpCode code) {
43        return http_codes[code];
44}
45
46static inline int answer( int fd, const char * it, int len) {
47        while(len > 0) {
48                // Call write
49                int ret = cfa_write(fd, it, len, 0, -1`s, 0p, 0p);
50                if( ret < 0 ) { if( errno != EAGAIN && errno != EWOULDBLOCK) abort( "'answer error' error: (%d) %s\n", (int)errno, strerror(errno) ); }
51
52                // update it/len
53                it  += ret;
54                len -= ret;
55        }
56        return 0;
57}
58
59int answer_error( int fd, HttpCode code ) {
60        /* paranoid */ assert( code < KNOWN_CODES && code != OK200 );
61        int idx = (int)code;
62        return answer( fd, http_msgs[idx], strlen( http_msgs[idx] ) );
63}
64
65int answer_header( int fd, size_t size ) {
66        const char * fmt = http_msgs[OK200];
67        int len = 200;
68        char buffer[len];
69        len = snprintf(buffer, len, fmt, date, size);
70        return answer( fd, buffer, len );
71}
72
73int answer_plain( int fd, char buffer[], size_t size ) {
74        int ret = answer_header(fd, size);
75        if( ret < 0 ) return ret;
76        return answer(fd, buffer, size);
77}
78
79
80[HttpCode code, bool closed, * const char file, size_t len] http_read(int fd, []char buffer, size_t len, io_cancellation * cancel) {
81        char * it = buffer;
82        size_t count = len - 1;
83        int rlen = 0;
84        READ:
85        for() {
86                int ret = cfa_read(fd, (void*)it, count, 0, -1`s, cancel, 0p);
87                // int ret = read(fd, (void*)it, count);
88                if(ret == 0 ) return [OK200, true, 0, 0];
89                if(ret < 0 ) {
90                        if( errno == EAGAIN || errno == EWOULDBLOCK) continue READ;
91                        // if( errno == EINVAL ) return [E400, true, 0, 0];
92                        abort( "read error: (%d) %s\n", (int)errno, strerror(errno) );
93                }
94                it[ret + 1] = '\0';
95                rlen += ret;
96
97                if( strstr( it, "\r\n\r\n" ) ) break;
98
99                it += ret;
100                count -= ret;
101
102                if( count < 1 ) return [E414, false, 0, 0];
103        }
104
105        printf("%.*s\n", rlen, buffer);
106
107        it = buffer;
108        int ret = memcmp(it, "GET /", 5);
109        if( ret != 0 ) return [E400, false, 0, 0];
110        it += 5;
111
112        char * end = strstr( it, " " );
113        return [OK200, false, it, end - it];
114}
115
116void sendfile( int pipe[2], int fd, int ans_fd, size_t count ) {
117        off_t offset = 0;
118        ssize_t ret;
119        SPLICE1: while(count > 0) {
120                ret = cfa_splice(ans_fd, &offset, pipe[1], 0p, count, SPLICE_F_MOVE | SPLICE_F_MORE, 0, -1`s, 0p, 0p);
121                if( ret < 0 ) {
122                        if( errno != EAGAIN && errno != EWOULDBLOCK) continue SPLICE1;
123                        abort( "splice [0] error: (%d) %s\n", (int)errno, strerror(errno) );
124                }
125
126                count -= ret;
127                offset += ret;
128                size_t in_pipe = ret;
129                SPLICE2: while(in_pipe > 0) {
130                        ret = cfa_splice(pipe[0], 0p, fd, 0p, in_pipe, SPLICE_F_MOVE | SPLICE_F_MORE, 0, -1`s, 0p, 0p);
131                        if( ret < 0 ) {
132                                if( errno != EAGAIN && errno != EWOULDBLOCK) continue SPLICE2;
133                                abort( "splice [1] error: (%d) %s\n", (int)errno, strerror(errno) );
134                        }
135                        in_pipe -= ret;
136                }
137
138        }
139}
140
141//=============================================================================================
142
143#include <clock.hfa>
144#include <time.hfa>
145#include <thread.hfa>
146
147struct date_buffer {
148        char buff[100];
149};
150
151thread DateFormater {
152        int idx;
153        date_buffer buffers[2];
154};
155
156void ?{}( DateFormater & this ) {
157        ((thread&)this){ "Server Date Thread", *options.clopts.instance };
158        this.idx = 0;
159        memset( this.buffers[0].buff, 0, sizeof(this.buffers[0]) );
160        memset( this.buffers[1].buff, 0, sizeof(this.buffers[1]) );
161}
162
163void main(DateFormater & this) {
164        LOOP: for() {
165                waitfor( ^?{} : this) {
166                        break LOOP;
167                }
168                or else {}
169
170                Time now = getTimeNsec();
171
172                strftime( this.buffers[this.idx].buff, 100, "%a, %d %b %Y %H:%M:%S %Z", now );
173
174                char * next = this.buffers[this.idx].buff;
175                __atomic_exchange_n((char * volatile *)&date, next, __ATOMIC_SEQ_CST);
176                this.idx = (this.idx + 1) % 2;
177
178                sleep(1`s);
179        }
180}
181
182//=============================================================================================
183DateFormater * the_date_formatter;
184
185void init_protocol(void) {
186        the_date_formatter = alloc();
187        (*the_date_formatter){};
188}
189
190void deinit_protocol(void) {
191        ^(*the_date_formatter){};
192        free( the_date_formatter );
193}
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