From 7afdc95421086920ec83ff9b782b7d997b1d79a6 Mon Sep 17 00:00:00 2001 From: "Nicolas \"Pixel\" Noble" Date: Sat, 1 Sep 2012 23:16:23 -0700 Subject: Effectively tossing libeio away. --- src/Input.cc | 123 ++++++++++++++++++++++++++++++++++++++++++++--------------- 1 file changed, 93 insertions(+), 30 deletions(-) (limited to 'src/Input.cc') diff --git a/src/Input.cc b/src/Input.cc index 3608cd0..5e8c36c 100644 --- a/src/Input.cc +++ b/src/Input.cc @@ -3,9 +3,10 @@ #include #include #include -#include "eio.h" +#include "Async.h" #include "Input.h" #include "Task.h" +#include "TaskMan.h" #include "Printer.h" #ifdef _WIN32 @@ -19,33 +20,52 @@ static const char * strerror_r(int errorno, char * buf, size_t bufsize) { } #endif +namespace { + struct cbResults_t { Balau::Events::Custom evt; int result, errorno; }; -static int eioDone(eio_req * req) { - cbResults_t * cbResults = (cbResults_t *) req->data; - cbResults->result = req->result; - cbResults->errorno = req->errorno; - cbResults->evt.doSignal(); - return 0; -} +class AsyncOpOpen : public Balau::AsyncOperation { + public: + AsyncOpOpen(const char * path, cbResults_t * results) : m_path(path), m_results(results) { } + virtual void run() { + int r = m_results->result = open(m_path, O_RDONLY); + m_results->errorno = r < 0 ? errno : 0; + } + virtual void done() { + m_results->evt.doSignal(); + delete this; + } + private: + const char * m_path; + cbResults_t * m_results; +}; struct cbStatsResults_t { Balau::Events::Custom evt; int result, errorno; - EIO_STRUCT_STAT statdata; + struct stat statdata; }; -static int eioStatsDone(eio_req * req) { - cbStatsResults_t * cbStatsResults = (cbStatsResults_t *) req->data; - cbStatsResults->result = req->result; - cbStatsResults->errorno = req->errorno; - cbStatsResults->statdata = *(EIO_STRUCT_STAT *) req->ptr2; - cbStatsResults->evt.doSignal(); - return 0; -} +class AsyncOpStat : public Balau::AsyncOperation { + public: + AsyncOpStat(int fd, cbStatsResults_t * results) : m_fd(fd), m_results(results) { } + virtual void run() { + int r = m_results->result = fstat(m_fd, &m_results->statdata); + m_results->errorno = r < 0 ? errno : 0; + } + virtual void done() { + m_results->evt.doSignal(); + delete this; + } + private: + int m_fd; + cbStatsResults_t * m_results; +}; + +}; Balau::Input::Input(const char * fname) throw (GeneralException) { m_name.set("Input(%s)", fname); @@ -54,14 +74,13 @@ Balau::Input::Input(const char * fname) throw (GeneralException) { Printer::elog(E_INPUT, "Opening file %s", fname); cbResults_t cbResults; - eio_req * r = eio_open(fname, O_RDONLY, 0, 0, eioDone, &cbResults); - EAssert(r != NULL, "eio_open returned a NULL eio_req"); + createAsyncOp(new AsyncOpOpen(fname, &cbResults)); Task::operationYield(&cbResults.evt); if (cbResults.result < 0) { - char str[4096]; if (cbResults.errorno == ENOENT) { throw ENoEnt(fname); } else { + char str[4096]; throw GeneralException(String("Unable to open file ") + m_name + " for reading: " + strerror_r(cbResults.errorno, str, sizeof(str)) + " (err#" + cbResults.errorno + ")"); } } else { @@ -69,8 +88,7 @@ Balau::Input::Input(const char * fname) throw (GeneralException) { } cbStatsResults_t cbStatsResults; - r = eio_fstat(m_fd, 0, eioStatsDone, &cbStatsResults); - EAssert(r != NULL, "eio_fstat returned a NULL eio_req"); + createAsyncOp(new AsyncOpStat(m_fd, &cbStatsResults)); Task::operationYield(&cbStatsResults.evt); if (cbStatsResults.result == 0) { m_size = cbStatsResults.statdata.st_size; @@ -78,27 +96,72 @@ Balau::Input::Input(const char * fname) throw (GeneralException) { } } +namespace { + +class AsyncOpClose : public Balau::AsyncOperation { + public: + AsyncOpClose(int fd, cbResults_t * results) : m_fd(fd), m_results(results) { } + virtual void run() { + int r = m_results->result = close(m_fd); + m_results->errorno = r < 0 ? errno : 0; + } + virtual void done() { + m_results->evt.doSignal(); + delete this; + } + private: + int m_fd; + cbResults_t * m_results; +}; + +}; + void Balau::Input::close() throw (GeneralException) { if (m_fd < 0) return; cbResults_t cbResults; - eio_req * r = eio_close(m_fd, 0, eioDone, &cbResults); - EAssert(r != NULL, "eio_close returned a NULL eio_req"); - m_fd = -1; + createAsyncOp(new AsyncOpClose(m_fd, &cbResults)); Task::operationYield(&cbResults.evt); + m_fd = -1; if (cbResults.result < 0) { char str[4096]; strerror_r(cbResults.errorno, str, sizeof(str)); throw GeneralException(String("Unable to close file ") + m_name + ": " + str); - } else { - m_fd = cbResults.result; } } +namespace { + +struct cbReadResults_t { + Balau::Events::Custom evt; + ssize_t result; + int errorno; +}; + +class AsyncOpRead : public Balau::AsyncOperation { + public: + AsyncOpRead(int fd, void * buf, size_t count, off_t offset, cbReadResults_t * results) : m_fd(fd), m_buf(buf), m_count(count), m_offset(offset), m_results(results) { } + virtual void run() { + ssize_t r = m_results->result = pread(m_fd, m_buf, m_count, m_offset); + m_results->errorno = r < 0 ? errno : 0; + } + virtual void done() { + m_results->evt.doSignal(); + delete this; + } + private: + int m_fd; + void * m_buf; + size_t m_count; + off_t m_offset; + cbReadResults_t * m_results; +}; + +}; + ssize_t Balau::Input::read(void * buf, size_t count) throw (GeneralException) { - cbResults_t cbResults; - eio_req * r = eio_read(m_fd, buf, count, getROffset(), 0, eioDone, &cbResults); - EAssert(r != NULL, "eio_read returned a NULL eio_req"); + cbReadResults_t cbResults; + createAsyncOp(new AsyncOpRead(m_fd, buf, count, getROffset(), &cbResults)); Task::operationYield(&cbResults.evt); if (cbResults.result > 0) { rseek(cbResults.result, SEEK_CUR); -- cgit v1.2.3