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[cdc_stream] Use ephemeral ports (#100)

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Instead of running netstat/ss on local and remote systems, just bind
with port 0 to find an ephemeral port. This is much more robust,
simpler and a bit faster. Since the remote port is only known after
running cdc_fuse_fs, port forwarding has to be set up after running
cdc_fuse_fs.
This commit is contained in:
Lutz Justen
2023-06-23 11:19:36 +02:00
committed by GitHub
parent 678ee0ffaf
commit 370023a944
13 changed files with 214 additions and 134 deletions
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19
cdc_fuse_fs/constants.h
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@@ -19,15 +19,22 @@
namespace cdc_ft {
// FUSE prints this to stdout when the binary timestamp and file size match the
// file on the workstation.
static constexpr char kFuseUpToDate[] = "cdc_fuse_fs is up-to-date";
// FUSE prints
// Port 12345 cdc_fuse_fs is up-to-date
// to stdout when its version matches the version (=build version or
// size/timestamp for DEV builds) on the local device. The port is the gRPC port
// that FUSE will try to connect to.
static constexpr char kFusePortPrefix[] = "Port ";
static constexpr char kFuseUpToDate[] = " cdc_fuse_fs is up-to-date";
// FUSE prints this to stdout when the binary timestamp or file size does not
// match the file on the workstation. It indicates that the binary has to be
// redeployed.
// FUSE prints this to stdout when its version does not match the version on the
// local device. It indicates that the binary has to be redeployed.
static constexpr char kFuseNotUpToDate[] = "cdc_fuse_fs is not up-to-date";
// FUSE prints this to stdout when it can connect to its port. This means that
// port forwarding has finished setting up, and startup is finished.
static constexpr char kFuseConnected[] = "cdc_fuse_fs is connected";
} // namespace cdc_ft
#endif // CDC_FUSE_FS_CONSTANTS_H_