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lxip: poll/read_ready for all socket fs files

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This commit is contained in:
Christian Helmuth
2017-04-24 14:59:46 +02:00
parent 1d99e7ede9
commit 3b5c16e307
1 changed files with 18 additions and 27 deletions
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43
repos/dde_linux/src/lib/vfs/lxip/vfs.cc
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@ -232,8 +232,7 @@ struct Vfs::File : Vfs::Node
/** /**
* Check for data to read or write * Check for data to read or write
*/ */
virtual bool poll(bool trigger_io_response = false, virtual bool poll(bool trigger_io_response, Vfs::Vfs_handle::Context *context) = 0;
Vfs::Vfs_handle::Context *context = nullptr) { return false; }
}; };
@ -413,6 +412,8 @@ class Vfs::Lxip_bind_file : public Vfs::Lxip_file
** File interface ** ** File interface **
********************/ ********************/
bool poll(bool, Vfs::Vfs_handle::Context *) { return true; }
Lxip::ssize_t write(char const *src, Genode::size_t len, Lxip::ssize_t write(char const *src, Genode::size_t len,
file_size /* ignored */) override file_size /* ignored */) override
{ {
@ -476,6 +477,8 @@ class Vfs::Lxip_listen_file : public Vfs::Lxip_file
** File interface ** ** File interface **
********************/ ********************/
bool poll(bool, Vfs::Vfs_handle::Context *) { return true; }
Lxip::ssize_t write(char const *src, Genode::size_t len, Lxip::ssize_t write(char const *src, Genode::size_t len,
file_size /* ignored */) override file_size /* ignored */) override
{ {
@ -529,6 +532,8 @@ class Vfs::Lxip_connect_file : public Vfs::Lxip_file
** File interface ** ** File interface **
********************/ ********************/
bool poll(bool, Vfs::Vfs_handle::Context *) { return true; }
Lxip::ssize_t write(char const *src, Genode::size_t len, Lxip::ssize_t write(char const *src, Genode::size_t len,
file_size /* ignored */) override file_size /* ignored */) override
{ {
@ -599,27 +604,7 @@ class Vfs::Lxip_local_file : public Vfs::Lxip_file
** File interface ** ** File interface **
********************/ ********************/
bool poll(bool trigger_io_response, bool poll(bool, Vfs::Vfs_handle::Context *) { return true; }
Vfs::Vfs_handle::Context *context) override
{
using namespace Linux;
file f;
f.f_flags = 0;
switch (_parent.parent().type()) {
case Lxip::Protocol_dir::TYPE_DGRAM:
if (_sock.ops->poll(&f, &_sock, nullptr) & (POLLIN_SET)) {
if (trigger_io_response)
_parent.trigger_io_response(context);
return true;
}
case Lxip::Protocol_dir::TYPE_STREAM:
return true;
}
return false;
}
Lxip::ssize_t read(char *dst, Genode::size_t len, Lxip::ssize_t read(char *dst, Genode::size_t len,
file_size /* ignored */) override file_size /* ignored */) override
@ -672,7 +657,11 @@ class Vfs::Lxip_remote_file : public Vfs::Lxip_file
_parent.trigger_io_response(context); _parent.trigger_io_response(context);
return true; return true;
} }
return false;
case Lxip::Protocol_dir::TYPE_STREAM: case Lxip::Protocol_dir::TYPE_STREAM:
if (trigger_io_response)
_parent.trigger_io_response(context);
return true; return true;
} }
@ -709,6 +698,7 @@ class Vfs::Lxip_remote_file : public Vfs::Lxip_file
iov.iov_len = sizeof(_content_buffer); iov.iov_len = sizeof(_content_buffer);
int const res = _sock.ops->recvmsg(&_sock, &msg, 0, MSG_DONTWAIT|MSG_PEEK); int const res = _sock.ops->recvmsg(&_sock, &msg, 0, MSG_DONTWAIT|MSG_PEEK);
if (res == -EAGAIN) throw Would_block();
if (res < 0) return -1; if (res < 0) return -1;
} }
break; break;
@ -1223,6 +1213,8 @@ class Vfs::Lxip_address_file : public Vfs::File
Lxip_address_file(char const *name, unsigned int &numeric_address) Lxip_address_file(char const *name, unsigned int &numeric_address)
: Vfs::File(name), _numeric_address(numeric_address) { } : Vfs::File(name), _numeric_address(numeric_address) { }
bool poll(bool, Vfs::Vfs_handle::Context *) { return true; }
Lxip::ssize_t read(char *dst, Genode::size_t len, Lxip::ssize_t read(char *dst, Genode::size_t len,
file_size /* ignored */) override file_size /* ignored */) override
{ {
@ -1574,7 +1566,7 @@ class Vfs::Lxip_file_system : public Vfs::File_system,
static_cast<Vfs::Lxip_vfs_handle *>(vfs_handle)->file; static_cast<Vfs::Lxip_vfs_handle *>(vfs_handle)->file;
if (!count) if (!count)
Genode::error("zero read of ",file.name()); Genode::error("zero read of ", file.name());
if (count) try { if (count) try {
Lxip::ssize_t res = file.read(dst, count, vfs_handle->seek()); Lxip::ssize_t res = file.read(dst, count, vfs_handle->seek());
@ -1612,8 +1604,7 @@ class Vfs::Lxip_file_system : public Vfs::File_system,
Lxip_vfs_handle *handle = Lxip_vfs_handle *handle =
static_cast<Vfs::Lxip_vfs_handle *>(vfs_handle); static_cast<Vfs::Lxip_vfs_handle *>(vfs_handle);
/* TODO when to _polling_handles.remove(handle); ? */ return handle->file.poll(false, nullptr);
return handle->file.poll();
} }
}; };