source: benchmark/io/http/protocol.cfa @ 7270432

arm-ehjacob/cs343-translationnew-ast-unique-expr
Last change on this file since 7270432 was 7270432, checked in by Thierry Delisle <tdelisle@…>, 11 months ago

Splice no longer uses SPLICE_F_MORE.
Added answer_empty

  • Property mode set to 100644
File size: 5.2 KB
Line 
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                // int ret = write(fd, it, len);
51                if( ret < 0 ) { if( errno != EAGAIN && errno != EWOULDBLOCK) abort( "'answer error' error: (%d) %s\n", (int)errno, strerror(errno) ); }
52
53                // update it/len
54                it  += ret;
55                len -= ret;
56        }
57        return 0;
58}
59
60int answer_error( int fd, HttpCode code ) {
61        /* paranoid */ assert( code < KNOWN_CODES && code != OK200 );
62        int idx = (int)code;
63        return answer( fd, http_msgs[idx], strlen( http_msgs[idx] ) );
64}
65
66int answer_header( int fd, size_t size ) {
67        const char * fmt = http_msgs[OK200];
68        int len = 200;
69        char buffer[len];
70        len = snprintf(buffer, len, fmt, date, size);
71        return answer( fd, buffer, len );
72}
73
74int answer_plain( int fd, char buffer[], size_t size ) {
75        int ret = answer_header(fd, size);
76        if( ret < 0 ) return ret;
77        return answer(fd, buffer, size);
78}
79
80int answer_empty( int fd ) {
81        return answer_header(fd, 0);
82}
83
84
85[HttpCode code, bool closed, * const char file, size_t len] http_read(int fd, []char buffer, size_t len, io_cancellation * cancel) {
86        char * it = buffer;
87        size_t count = len - 1;
88        int rlen = 0;
89        READ:
90        for() {
91                int ret = cfa_read(fd, (void*)it, count, 0, -1`s, cancel, 0p);
92                // int ret = read(fd, (void*)it, count);
93                if(ret == 0 ) return [OK200, true, 0, 0];
94                if(ret < 0 ) {
95                        if( errno == EAGAIN || errno == EWOULDBLOCK) continue READ;
96                        // if( errno == EINVAL ) return [E400, true, 0, 0];
97                        abort( "read error: (%d) %s\n", (int)errno, strerror(errno) );
98                }
99                it[ret + 1] = '\0';
100                rlen += ret;
101
102                if( strstr( it, "\r\n\r\n" ) ) break;
103
104                it += ret;
105                count -= ret;
106
107                if( count < 1 ) return [E414, false, 0, 0];
108        }
109
110        if( options.log ) printf("%.*s\n", rlen, buffer);
111
112        it = buffer;
113        int ret = memcmp(it, "GET /", 5);
114        if( ret != 0 ) return [E400, false, 0, 0];
115        it += 5;
116
117        char * end = strstr( it, " " );
118        return [OK200, false, it, end - it];
119}
120
121void sendfile( int pipe[2], int fd, int ans_fd, size_t count ) {
122        unsigned sflags = SPLICE_F_MOVE; // | SPLICE_F_MORE;
123        off_t offset = 0;
124        ssize_t ret;
125        SPLICE1: while(count > 0) {
126                ret = cfa_splice(ans_fd, &offset, pipe[1], 0p, count, sflags, 0, -1`s, 0p, 0p);
127                // ret = splice(ans_fd, &offset, pipe[1], 0p, count, sflags);
128                if( ret < 0 ) {
129                        if( errno != EAGAIN && errno != EWOULDBLOCK) continue SPLICE1;
130                        abort( "splice [0] error: (%d) %s\n", (int)errno, strerror(errno) );
131                }
132
133                count -= ret;
134                offset += ret;
135                size_t in_pipe = ret;
136                SPLICE2: while(in_pipe > 0) {
137                        ret = cfa_splice(pipe[0], 0p, fd, 0p, in_pipe, sflags, 0, -1`s, 0p, 0p);
138                        // ret = splice(pipe[0], 0p, fd, 0p, in_pipe, sflags);
139                        if( ret < 0 ) {
140                                if( errno != EAGAIN && errno != EWOULDBLOCK) continue SPLICE2;
141                                abort( "splice [1] error: (%d) %s\n", (int)errno, strerror(errno) );
142                        }
143                        in_pipe -= ret;
144                }
145
146        }
147}
148
149//=============================================================================================
150
151#include <clock.hfa>
152#include <time.hfa>
153#include <thread.hfa>
154
155struct date_buffer {
156        char buff[100];
157};
158
159thread DateFormater {
160        int idx;
161        date_buffer buffers[2];
162};
163
164void ?{}( DateFormater & this ) {
165        ((thread&)this){ "Server Date Thread", *options.clopts.instance };
166        this.idx = 0;
167        memset( this.buffers[0].buff, 0, sizeof(this.buffers[0]) );
168        memset( this.buffers[1].buff, 0, sizeof(this.buffers[1]) );
169}
170
171void main(DateFormater & this) {
172        LOOP: for() {
173                waitfor( ^?{} : this) {
174                        break LOOP;
175                }
176                or else {}
177
178                Time now = getTimeNsec();
179
180                strftime( this.buffers[this.idx].buff, 100, "%a, %d %b %Y %H:%M:%S %Z", now );
181
182                char * next = this.buffers[this.idx].buff;
183                __atomic_exchange_n((char * volatile *)&date, next, __ATOMIC_SEQ_CST);
184                this.idx = (this.idx + 1) % 2;
185
186                sleep(1`s);
187        }
188}
189
190//=============================================================================================
191DateFormater * the_date_formatter;
192
193void init_protocol(void) {
194        the_date_formatter = alloc();
195        (*the_date_formatter){};
196}
197
198void deinit_protocol(void) {
199        ^(*the_date_formatter){};
200        free( the_date_formatter );
201}
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