Mercurial > hg > nginx
view src/os/unix/ngx_solaris_sendfilev_chain.c @ 5638:0c0dd1aacdf5
Mp4: allow end values bigger than track duration.
If start time is within the track but end time is out of it, error
"end time is out mp4 stts samples" is generated. However it's
better to ignore the error and output the track until its end.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Tue, 01 Apr 2014 20:53:18 +0400 |
parents | ad137a80919f |
children | f9c83484d9ce |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #if (NGX_TEST_BUILD_SOLARIS_SENDFILEV) /* Solaris declarations */ typedef struct sendfilevec { int sfv_fd; u_int sfv_flag; off_t sfv_off; size_t sfv_len; } sendfilevec_t; #define SFV_FD_SELF -2 static ssize_t sendfilev(int fd, const struct sendfilevec *vec, int sfvcnt, size_t *xferred) { return -1; } ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit); #endif #if (IOV_MAX > 64) #define NGX_SENDFILEVECS 64 #else #define NGX_SENDFILEVECS IOV_MAX #endif ngx_chain_t * ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) { int fd; u_char *prev; off_t size, send, prev_send, aligned, fprev; size_t sent; ssize_t n; ngx_int_t eintr, complete; ngx_err_t err; sendfilevec_t *sfv, sfvs[NGX_SENDFILEVECS]; ngx_array_t vec; ngx_event_t *wev; ngx_chain_t *cl; wev = c->write; if (!wev->ready) { return in; } if (!c->sendfile) { return ngx_writev_chain(c, in, limit); } /* the maximum limit size is the maximum size_t value - the page size */ if (limit == 0 || limit > (off_t) (NGX_MAX_SIZE_T_VALUE - ngx_pagesize)) { limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize; } send = 0; vec.elts = sfvs; vec.size = sizeof(sendfilevec_t); vec.nalloc = NGX_SENDFILEVECS; vec.pool = c->pool; for ( ;; ) { fd = SFV_FD_SELF; prev = NULL; fprev = 0; sfv = NULL; eintr = 0; complete = 0; sent = 0; prev_send = send; vec.nelts = 0; /* create the sendfilevec and coalesce the neighbouring bufs */ for (cl = in; cl && send < limit; cl = cl->next) { if (ngx_buf_special(cl->buf)) { continue; } if (ngx_buf_in_memory_only(cl->buf)) { fd = SFV_FD_SELF; size = cl->buf->last - cl->buf->pos; if (send + size > limit) { size = limit - send; } if (prev == cl->buf->pos) { sfv->sfv_len += (size_t) size; } else { if (vec.nelts >= IOV_MAX) { break; } sfv = ngx_array_push(&vec); if (sfv == NULL) { return NGX_CHAIN_ERROR; } sfv->sfv_fd = SFV_FD_SELF; sfv->sfv_flag = 0; sfv->sfv_off = (off_t) (uintptr_t) cl->buf->pos; sfv->sfv_len = (size_t) size; } prev = cl->buf->pos + (size_t) size; send += size; } else { prev = NULL; size = cl->buf->file_last - cl->buf->file_pos; if (send + size > limit) { size = limit - send; aligned = (cl->buf->file_pos + size + ngx_pagesize - 1) & ~((off_t) ngx_pagesize - 1); if (aligned <= cl->buf->file_last) { size = aligned - cl->buf->file_pos; } } if (fd == cl->buf->file->fd && fprev == cl->buf->file_pos) { sfv->sfv_len += (size_t) size; } else { if (vec.nelts >= IOV_MAX) { break; } sfv = ngx_array_push(&vec); if (sfv == NULL) { return NGX_CHAIN_ERROR; } fd = cl->buf->file->fd; sfv->sfv_fd = fd; sfv->sfv_flag = 0; sfv->sfv_off = cl->buf->file_pos; sfv->sfv_len = (size_t) size; } fprev = cl->buf->file_pos + size; send += size; } } n = sendfilev(c->fd, vec.elts, vec.nelts, &sent); if (n == -1) { err = ngx_errno; switch (err) { case NGX_EAGAIN: break; case NGX_EINTR: eintr = 1; break; default: wev->error = 1; ngx_connection_error(c, err, "sendfilev() failed"); return NGX_CHAIN_ERROR; } ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, err, "sendfilev() sent only %uz bytes", sent); } ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, "sendfilev: %z %z", n, sent); if (send - prev_send == (off_t) sent) { complete = 1; } c->sent += sent; for ( /* void */ ; in; in = in->next) { if (ngx_buf_special(in->buf)) { continue; } if (sent == 0) { break; } size = ngx_buf_size(in->buf); if ((off_t) sent >= size) { sent = (size_t) ((off_t) sent - size); if (ngx_buf_in_memory(in->buf)) { in->buf->pos = in->buf->last; } if (in->buf->in_file) { in->buf->file_pos = in->buf->file_last; } continue; } if (ngx_buf_in_memory(in->buf)) { in->buf->pos += sent; } if (in->buf->in_file) { in->buf->file_pos += sent; } break; } if (eintr) { continue; } if (!complete) { wev->ready = 0; return in; } if (send >= limit || in == NULL) { return in; } } }