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All build in rust

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Anthony Scemama 2023-10-23 15:11:15 +02:00
parent fcedff429c
commit 421581fe9d
4 changed files with 315 additions and 408 deletions
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2
rust/trexio/Cargo.toml
View File

@ -21,3 +21,5 @@ doctest = false
[dependencies]
bindgen = "0.65.1"
serde_json = "1.0"

379
rust/trexio/build.py
View File

@ -1,379 +0,0 @@
#!/usr/bin/env python3
import json
json_file = "../../trex.json"
generated_rs = "src/generated_py.rs"
convert_r = { "int": "i64",
"int special" : "usize",
"float" : "f64",
"float sparse" : "f64",
"float buffered" : "f64",
"dim" : "usize",
"dim readonly" : "usize",
"index" : "usize",
"str" : "str"}
convert_c = { "int": "i64",
"int special" : "i64",
"float" : "f64",
"float sparse" : "f64",
"float buffered" : "f64",
"dim" : "i64",
"dim readonly" : "i64",
"index" : "i64",
"str" : "str"}
def make_array_functions(data):
r = []
for group in data:
group_l = group.lower()
for element in data[group]:
type_c = convert_c[data[group][element][0]]
type_r = convert_r[data[group][element][0]]
element_l = element.lower()
if data[group][element][1] != []:
if data[group][element][0] in [ "int", "float", "dim", "index" ]:
t = [ f"""
/// Reads the `{element}` array from the group `{group}` in the file.
///
/// # Dimensions
///
/// The array is of dimension `{data[group][element][1]}`.
///
/// # Returns
///
/// * `Result<Vec<{type_r}>, ExitCode>` - Returns a flattened one-dimensional vector that contains
/// the elements of the `{element}` array. If the operation is unsuccessful, it returns `Err(ExitCode)`.
///
/// """ ]
if len(data[group][element][1]) > 1:
t += [ f"""
/// # Example
///
/// To reshape the one-dimensional vector back into a two-dimensional array, you can use the [`chunks`] method:
///
/// ```
/// let one_d_array = trexio_file.read_{group_l}_{element_l}()?;""" ]
try:
dim_group, dim_element = data[group][element][1][0].split('.')
t += [ f"/// let {dim_group}_{dim_element} = trexio_file.read_{dim_group}_{dim_element}()?;",
f"/// let two_d_array: Vec<_> = one_d_array.chunks({dim_group}_{dim_element}).collect();"
]
except:
t += [ f"/// let two_d_array: Vec<_> = one_d_array.chunks({data[group][element][1][0]}).collect();" ]
t += [ """
/// ```
///
/// [`chunks`]: slice::chunks"""
]
t += [ """
pub fn read_{group_l}_{element_l}(&self) -> Result<Vec<{type_r}>, ExitCode> {
let size = 1;""" ]
t_prime = []
for dim in data[group][element][1]:
try: # A dimensioning variable
dim_group, dim_element = dim.split('.')
t_prime += [f" let size = size * self.read_{dim_group}_{dim_element}()?;" ]
except: # Only an integer
t_prime += [f" let size = size * {dim};"]
t += t_prime
t += [ """
let mut data: Vec<{type_r}> = Vec::with_capacity(size);
let rc = unsafe {
let data_c = data.as_mut_ptr() as *mut {type_c};
let rc = c::trexio_read_safe_{group}_{element}_64(self.ptr, data_c, size.try_into().expect("try_into failed in read_{group}_{element} (size)"));
data.set_len(size);
rc
};
rc_return(data, rc)
}
""" ]
r += [ '\n'.join(t)
.replace("{type_c}",type_c)
.replace("{type_r}",type_r)
.replace("{group}",group)
.replace("{group_l}",group_l)
.replace("{element}",element)
.replace("{element_l}",element_l) ]
r += [ f"""
/// Writes the `{element}` array into the group `{group}` in the file.
///
/// # Parameters
///
/// * `data: &[{type_r}]` - A one-dimensional vector that contains the elements of the `{element}` array
/// to be written into the file. The vector should be flattened from a two-dimensional array with
/// dimensions `{data[group][element][1]}`.
///
/// # Returns
///
/// * `Result<(), ExitCode>` - Returns `Ok(())` if the operation is successful,
/// otherwise returns `Err(ExitCode)`.""", """\
pub fn write_{group_l}_{element_l}(&self, data: &[{type_r}]) -> Result<(), ExitCode> {
let size: i64 = data.len().try_into().expect("try_into failed in write_{group_l}_{element_l}");
let data = data.as_ptr() as *const {type_c};
let rc = unsafe { c::trexio_write_safe_{group}_{element}_64(self.ptr, data, size) };
rc_return((), rc)
}
"""
.replace("{type_c}",type_c)
.replace("{type_r}",type_r)
.replace("{group}",group)
.replace("{group_l}",group_l)
.replace("{element}",element)
.replace("{element_l}",element_l) ]
elif data[group][element][0] in [ "str" ]:
t = [ f"""
/// Reads the `{element}` array from the group `{group}` in the file.
///
/// # Dimensions
///
/// The array is of dimension `{data[group][element][1]}`.
///
/// # Returns
///
/// * `Result<Vec<{type_r}>, ExitCode>` - Returns a flattened one-dimensional vector that contains
/// the elements of the `{element}` array. If the operation is unsuccessful, it returns `Err(ExitCode)`.
///
/// """ ]
if len(data[group][element][1]) > 1:
t += [ f"""
/// # Example
///
/// To reshape the one-dimensional vector back into a two-dimensional array, you can use the [`chunks`] method:
///
/// ```
/// let one_d_array = trexio_file.read_{group_l}_{element_l}()?;""" ]
try:
dim_group, dim_element = data[group][element][1][0].split('.')
t += [ f"/// let {dim_group}_{dim_element} = trexio_file.read_{dim_group}_{dim_element}()?;",
f"/// let two_d_array: Vec<_> = one_d_array.chunks({dim_group}_{dim_element}).collect();"
]
except:
t += [ f"/// let two_d_array: Vec<_> = one_d_array.chunks({data[group][element][1][0]}).collect();" ]
t += [ """
/// ```
///
/// [`chunks`]: slice::chunks"""
]
t += [ """pub fn read_{group_l}_{element_l}(&self, capacity: usize) -> Result<Vec<String>, ExitCode> {
let size = 1;""" ]
t_prime = []
for dim in data[group][element][1]:
try: # A dimensioning variable
dim_group, dim_element = dim.split('.')
t_prime += [f" let size = size * self.read_{dim_group}_{dim_element}()?;" ]
except: # Only an integer
t_prime += [f" let size = size * {dim};"]
t += t_prime
t += [ """
// Allocate an array of *mut i8 pointers (initialized to null)
let mut dset_out: Vec<*mut i8> = vec![std::ptr::null_mut(); size];
// Allocate C-style strings and populate dset_out
for item in dset_out.iter_mut().take(size){
let c_str: *mut i8 = unsafe { std::alloc::alloc_zeroed(std::alloc::Layout::array::<i8>(capacity).unwrap()) as *mut i8 };
if c_str.is_null() {
return Err(ExitCode::AllocationFailed);
}
*item = c_str;
}
let rc = unsafe {
c::trexio_read_{group}_{element}(self.ptr, dset_out.as_mut_ptr(), capacity.try_into().expect("try_into failed in read_{group}_{element} (capacity)") )
};
// Convert the populated C strings to Rust Strings
let mut rust_strings = Vec::new();
for &c_str in &dset_out {
let rust_str = unsafe {
std::ffi::CStr::from_ptr(c_str)
.to_string_lossy()
.into_owned()
};
rust_strings.push(rust_str);
}
// Clean up allocated C strings
for &c_str in &dset_out {
unsafe { std::alloc::dealloc(c_str as *mut u8, std::alloc::Layout::array::<i8>(capacity).unwrap()) };
}
rc_return(rust_strings, rc)
}
""" ]
r += [ '\n'.join(t)
.replace("{group}",group)
.replace("{group_l}",group_l)
.replace("{element}",element)
.replace("{element_l}",element_l) ]
r += [ """
/// Writes the `{element}` array into the group `{group}` in the file.
///
/// # Parameters
///
/// * `data: &[{type_r}]` - A one-dimensional vector that contains the elements of the `{element}` array
/// to be written into the file. The vector should be flattened from a two-dimensional array with
/// dimensions `{data[group][element][1]}`.
///
/// # Returns
///
/// * `Result<(), ExitCode>` - Returns `Ok(())` if the operation is successful,
/// otherwise returns `Err(ExitCode)`.""", """\
pub fn write_{group_l}_{element_l}(&self, data: &[&str]) -> Result<(), ExitCode> {
let mut size = 0;
// Find longest string
for s in data {
let l = s.len();
size = if l>size {l} else {size};
}
size += 1;
let data_c : Vec<CString> = data.iter().map(|&x| string_to_c(x)).collect::<Vec<_>>();
let data_c : Vec<*const c_char> = data_c.iter().map(|x| x.as_ptr() as *const c_char).collect::<Vec<_>>();
let size : i32 = size.try_into().expect("try_into failed in write_{group}_{element} (size)");
let data_c = data_c.as_ptr() as *mut *const c_char;
let rc = unsafe { c::trexio_write_{group}_{element}(self.ptr, data_c, size) };
rc_return((), rc)
}
"""
.replace("{group}",group)
.replace("{group_l}",group_l)
.replace("{element}",element)
.replace("{element_l}",element_l) ]
elif data[group][element][0] in [ "float sparse" ]:
size = len(data[group][element][1])
typ = "(" + ",".join( [ "usize" for _ in range(size) ]) + ", f64)"
r += [ ("""
/// Reads a buffer of {element} from group {group}.
///
/// # Parameters
///
/// * `offset: usize` - The starting point in the array from which data will be read.
/// * `buffer_size: usize` - The size of the buffer in which read data will be stored.
///
/// # Returns
///
/// * `Result<Vec<{typ}>, ExitCode>` - Returns a vector of tuples containing
/// the indices and the value of the element. The vector has a length of at most `buffer_size`.
///
/// # Notes
///
/// The reading process is a buffered operation, meaning that only a segment of the full array
/// is read into the memory.
pub fn read_{group_l}_{element_l}(&self, offset: usize, buffer_size:usize) -> Result<Vec<{typ}>, ExitCode> {
let mut idx = Vec::<i32>::with_capacity({size}*buffer_size);
let mut val = Vec::<f64>::with_capacity(buffer_size);
let idx_ptr = idx.as_ptr() as *mut i32;
let val_ptr = val.as_ptr() as *mut f64;
let offset: i64 = offset.try_into().expect("try_into failed in read_{group}_{element} (offset)");
let mut buffer_size_read: i64 = buffer_size.try_into().expect("try_into failed in read_{group}_{element} (buffer_size)");
let rc = unsafe { c::trexio_read_safe_{group}_{element}(self.ptr,
offset, &mut buffer_size_read, idx_ptr, buffer_size_read, val_ptr, buffer_size_read)
};
let rc = match ExitCode::from(rc) {
ExitCode::End => ExitCode::to_c(&ExitCode::Success),
_ => rc
};
let buffer_size_read: usize = buffer_size_read.try_into().expect("try_into failed in read_{group}_{element} (buffer_size)");
unsafe { idx.set_len({size}*buffer_size_read) };
unsafe { val.set_len(buffer_size_read) };
let idx: Vec::<&[i32]> = idx.chunks({size}).collect();
let mut result = Vec::<{typ}>::with_capacity(buffer_size);
for (i, v) in zip(idx, val) {
result.push( ( """ +
','.join([ f"i[{k}].try_into().unwrap()" for k in range(size) ]) +
""",v) );
}
rc_return(result, rc)
}
""")
.replace("{size}",str(size))
.replace("{typ}",typ)
.replace("{type_c}",type_c)
.replace("{type_r}",type_r)
.replace("{group}",group)
.replace("{group_l}",group_l)
.replace("{element}",element)
.replace("{element_l}",element_l) ]
r += [ ("""
/// Writes a buffer of {element} from group {group}.
///
/// # Parameters
///
/// * `offset: usize` - The starting point in the array at which data will be written.
/// * `data: &[{typ}]` - A slice of tuples containing the indices and the value of the element.
///
/// # Returns
///
/// * `Result<(), ExitCode>` - Returns `Ok(())` if the writing operation is successful,
/// otherwise returns `Err(ExitCode)`.
///
/// # Notes
///
/// The writing process is a buffered operation, meaning that only a segment of the full array
/// is written into the file.
pub fn write_{group_l}_{element_l}(&self, offset: usize, data: &[{typ}]) -> Result<(), ExitCode> {
let mut idx = Vec::<i32>::with_capacity({size}*data.len());
let mut val = Vec::<f64>::with_capacity(data.len());
for d in data {
""" +
'\n'.join([ f" idx.push(d.{i}.try_into().unwrap());" for i in range(size) ]) +
f"\n val.push(d.{size});" +
"""
}
let size_max: i64 = data.len().try_into().expect("try_into failed in write_{group}_{element} (size_max)");
let buffer_size = size_max;
let idx_ptr = idx.as_ptr() as *const i32;
let val_ptr = val.as_ptr() as *const f64;
let offset: i64 = offset.try_into().expect("try_into failed in write_{group}_{element} (offset)");
let rc = unsafe { c::trexio_write_safe_{group}_{element}(self.ptr,
offset, buffer_size, idx_ptr, size_max, val_ptr, size_max) };
rc_return((), rc)
}
""")
.replace("{size}",str(size))
.replace("{typ}",typ)
.replace("{type_c}",type_c)
.replace("{type_r}",type_r)
.replace("{group}",group)
.replace("{group_l}",group_l)
.replace("{element}",element)
.replace("{element_l}",element_l) ]
return r
def make_functions():
with open(json_file,'r') as f:
data = json.load(f)
r = ["""
use std::iter::zip;
/// This implementation block includes additional functions automatically generated from tables.
/// For more details, refer to [TREXIO tables documentation](https://trex-coe.github.io/trexio/trex.html).
impl File {
#![allow(clippy::unnecessary_cast)]
#![allow(clippy::useless_conversion)]
#![allow(clippy::type_complexity)]
""" ]
r += make_array_functions(data)
r += [ "}" ]
with open(generated_rs,'w') as f:
f.write('\n'.join(r))
if __name__ == '__main__':
make_functions()

341
rust/trexio/build.rs
View File

@ -106,7 +106,7 @@ fn make_interface() -> io::Result<()> {
}
/// Dictionnary of type conversions
/// Type conversions for Rust API
fn convert_r(typ: &str) -> String {
match typ {
"int" => "i64",
@ -118,6 +118,7 @@ fn convert_r(typ: &str) -> String {
}.to_string()
}
/// Type conversion to call C functions
fn convert_c(typ: &str) -> String {
match typ {
"int" | "int special" | "dim" | "dim readonly" | "index" => "i64",
@ -141,7 +142,7 @@ fn make_has_functions(data: &Value) -> Vec<String> {
if let Value::Object(groups) = data {
for (group, elements) in groups.iter() {
let group_l = group.to_lowercase();
let has_group_func = format!(
"/// Checks if the group `{group}` exists in the file.
/// # Parameters
@ -159,17 +160,14 @@ pub fn has_{group_l}(&self) -> Result<bool, ExitCode> {{
c::TREXIO_HAS_NOT => Ok(false),
x => Err(ExitCode::from(x)),
}}
}}",
group = group,
group_l = group_l
);
}}");
r.push(has_group_func);
if let Value::Object(elements_map) = elements {
for (element, _types_value) in elements_map.iter() {
let element_l = element.to_lowercase();
let has_element_func = format!(
"/// Checks if the element `{element}` of the group `{group}` exists in the file.
///
@ -188,19 +186,13 @@ pub fn has_{group_l}_{element_l}(&self) -> Result<bool, ExitCode> {{
c::TREXIO_HAS_NOT => Ok(false),
x => Err(ExitCode::from(x)),
}}
}}",
group = group,
group_l = group_l,
element = element,
element_l = element_l
);
}}");
r.push(has_element_func);
}
}
}
}
r
}
@ -209,10 +201,10 @@ pub fn has_{group_l}_{element_l}(&self) -> Result<bool, ExitCode> {{
fn make_scalar_functions(data: &serde_json::Value) -> Vec<String> {
let mut r: Vec<String> = Vec::new();
for group in data.as_object().unwrap().keys() {
let group_l = group.to_lowercase();
for (element, attributes) in data[group].as_object().unwrap() {
let typ = attributes[0].as_str().unwrap();
let type_c = convert_c(typ);
@ -231,7 +223,7 @@ fn make_scalar_functions(data: &serde_json::Value) -> Vec<String> {
///
/// # Returns
///
/// * `Result<{type_r}, ExitCode>` - Returns the scalar element as a `{type_r}` upon successful
/// * `Result<{type_r}, ExitCode>` - Returns the scalar element as a `{type_r}` upon successful
/// operation. If the operation fails, it returns `Err(ExitCode)`.
pub fn read_{group_l}_{element_l}(&self) -> Result<{type_r}, ExitCode> {{
let mut data_c: {type_c} = 0{type_c};
@ -256,8 +248,7 @@ pub fn write_{group_l}_{element_l}(&self, data: {type_r}) -> Result<(), ExitCode
let rc = unsafe {{ c::trexio_write_{group}_{element}_64(self.ptr, data) }};
rc_return((), rc)
}}
"#,
type_c=type_c, type_r=type_r, group=group, group_l=group_l, element=element, element_l=element_l);
"#);
r.push(s);
},
"str" => {
@ -291,7 +282,7 @@ pub fn read_{group_l}_{element_l}(&self, capacity: usize) -> Result<String, Exit
///
/// # Returns
///
/// * `Result<(), ExitCode>` - Returns `Ok(())` upon successful operation.
/// * `Result<(), ExitCode>` - Returns `Ok(())` upon successful operation.
/// If the operation fails, it returns `Err(ExitCode)`.
pub fn write_{group_l}_{element_l}(&self, data: &str) -> Result<(), ExitCode> {{
let size : i32 = data.len().try_into().expect("try_into failed in write_{group_l}_{element_l}");
@ -300,8 +291,7 @@ pub fn write_{group_l}_{element_l}(&self, data: &str) -> Result<(), ExitCode> {{
let rc = unsafe {{ c::trexio_write_{group}_{element}(self.ptr, data, size) }};
rc_return((), rc)
}}
"#,
group=group, group_l=group_l, element=element, element_l=element_l);
"#);
r.push(s);
},
"dim readonly" => {
@ -324,8 +314,7 @@ pub fn read_{group_l}_{element_l}(&self) -> Result<{type_r}, ExitCode> {{
}};
rc_return(data, rc)
}}
"#,
type_c=type_c, type_r=type_r, group=group, group_l=group_l, element=element, element_l=element_l);
"#);
r.push(s);
},
_ => {}
@ -338,6 +327,301 @@ pub fn read_{group_l}_{element_l}(&self) -> Result<{type_r}, ExitCode> {{
fn make_array_functions(data: &serde_json::Value) -> Vec<String> {
let mut r: Vec<String> = Vec::new();
for group in data.as_object().unwrap().keys() {
let group_l = group.to_lowercase();
for (element, attributes) in data[group].as_object().unwrap() {
let typ = attributes[0].as_str().unwrap();
let type_c = convert_c(typ);
let type_r = convert_r(typ);
let element_l = element.to_lowercase();
let dimensions = attributes[1].as_array().unwrap();
let dimensions: Vec<&str> = dimensions.iter().map(|x| x.as_str().unwrap()).collect();
let dimensions_str = format!("{:?}", dimensions).replace("\"","");
if ! dimensions.is_empty() {
match typ {
"int" | "float" | "dim" | "index" => {
r.push(format!(r#"
/// Reads the `{element}` array from the group `{group}` in the file.
///
/// # Dimensions
///
/// The array is of dimension `{dimensions_str}`.
///
/// # Returns
///
/// * `Result<Vec<{type_r}>, ExitCode>` - Returns a flattened one-dimensional vector that contains
/// the elements of the `{element}` array. If the operation is unsuccessful, it returns `Err(ExitCode)`.
///
///"#));
if dimensions.len() > 1 {
r.push(format!(r#"
/// # Example
///
/// To reshape the one-dimensional vector back into a two-dimensional array, you can use the [`chunks`] method:
///
/// ```
/// let one_d_array = trexio_file.read_{}_{}()?;\n"#, group_l, element_l));
if let Some(dim) = dimensions.first() {
if dim.contains('.') {
let parts: Vec<&str> = dim.split('.').collect();
r.push(format!("/// let {}_{} = trexio_file.read_{}_{}()?;\n", parts[0], parts[1], parts[0], parts[1]));
r.push(format!("/// let two_d_array: Vec<_> = one_d_array.chunks({}_{}).collect();\n", parts[0], parts[1]));
} else {
r.push(format!("/// let two_d_array: Vec<_> = one_d_array.chunks({}).collect();\n", dim));
}
}
r.push(String::from("/// ```\n"));
r.push(String::from("///\n/// [`chunks`]: slice::chunks"));
}
r.push(format!(r#"pub fn read_{}_{}(&self) -> Result<Vec<{}>, ExitCode> {{
let mut size = 1;"#, group_l, element_l, type_r));
for dim in &dimensions {
if dim.contains('.') {
let parts: Vec<&str> = dim.split('.').collect();
r.push(format!(" size *= self.read_{}_{}()?;\n", parts[0], parts[1]));
} else {
r.push(format!(" size *= {};\n", dim));
}
}
r.push(format!(r#" let mut data: Vec<{type_r}> = Vec::with_capacity(size);
let rc = unsafe {{
let data_c = data.as_mut_ptr() as *mut {type_c};
let rc = c::trexio_read_safe_{group}_{element}_64(self.ptr, data_c, size.try_into().expect("try_into failed in read_{group}_{element} (size)"));
data.set_len(size);
rc
}};
rc_return(data, rc)
}}"#));
r.push(format!(r#"
/// Writes the `{element}` array into the group `{group}` in the file.
///
/// # Parameters
///
/// * `data: &[{type_r}]` - A one-dimensional vector that contains the elements of the `{element}` array
/// to be written into the file. The vector should be flattened from a two-dimensional array with
/// dimensions `{dimensions_str}`.
///
/// # Returns
///
/// * `Result<(), ExitCode>` - Returns `Ok(())` if the operation is successful,
/// otherwise returns `Err(ExitCode)`.""", """\
pub fn write_{group_l}_{element_l}(&self, data: &[{type_r}]) -> Result<(), ExitCode> {{
let size: i64 = data.len().try_into().expect("try_into failed in write_{group_l}_{element_l}");
let data = data.as_ptr() as *const {type_c};
let rc = unsafe {{ c::trexio_write_safe_{group}_{element}_64(self.ptr, data, size) }};
rc_return((), rc)
}}
"#));
}
,
"str" => {
r.push(format!(r#"
/// Reads the `{element}` array from the group `{group}` in the file.
///
/// # Dimensions
///
/// The array is of dimension `{dimensions_str}`.
///
/// # Returns
///
/// * `Result<Vec<{type_r}>, ExitCode>` - Returns a flattened one-dimensional vector that contains
/// the elements of the `{element}` array. If the operation is unsuccessful, it returns `Err(ExitCode)`.
///
/// "#));
if dimensions.len() > 1 {
r.push(format!(r#"/// # Example
///
/// To reshape the one-dimensional vector back into a two-dimensional array, you can use the [`chunks`] method:
///
/// ```
/// let one_d_array = trexio_file.read_{}_{}()?;"#, group_l, element_l));
if let Some(dim) = dimensions.first() {
if dim.contains('.') {
let parts: Vec<&str> = dim.split('.').collect();
r.push(format!("/// let {}_{} = trexio_file.read_{}_{}()?;\n", parts[0], parts[1], parts[0], parts[1]));
r.push(format!("/// let two_d_array: Vec<_> = one_d_array.chunks({}_{}).collect();\n", parts[0], parts[1]));
} else {
r.push(format!("/// let two_d_array: Vec<_> = one_d_array.chunks({}).collect();\n", dim));
}
}
r.push(String::from("/// ```\n"));
r.push(String::from("///\n/// [`chunks`]: slice::chunks"));
}
r.push(format!(r#"pub fn read_{}_{}(&self, capacity: usize) -> Result<Vec<String>, ExitCode> {{
let mut size = 1;"#, group_l, element_l));
for dim in &dimensions {
if dim.contains('.') {
let parts: Vec<&str> = dim.split('.').collect();
r.push(format!(" size *= self.read_{}_{}()?;\n", parts[0], parts[1]));
} else {
r.push(format!(" size *= {};\n", dim));
}
}
r.push(format!(r#" // Allocate an array of *mut i8 pointers (initialized to null)
let mut dset_out: Vec<*mut i8> = vec![std::ptr::null_mut(); size];
// Allocate C-style strings and populate dset_out
for item in dset_out.iter_mut().take(size) {{
let c_str: *mut i8 = unsafe {{ std::alloc::alloc_zeroed(std::alloc::Layout::array::<i8>(capacity).unwrap()) as *mut i8 }};
if c_str.is_null() {{
return Err(ExitCode::AllocationFailed);
}}
*item = c_str;
}}
let rc = unsafe {{
c::trexio_read_{group}_{element}(self.ptr, dset_out.as_mut_ptr(), capacity.try_into().expect("try_into failed in read_{group}_{element} (capacity)") )
}};
// Convert the populated C strings to Rust Strings
let mut rust_strings = Vec::new();
for &c_str in &dset_out {{
let rust_str = unsafe {{
std::ffi::CStr::from_ptr(c_str)
.to_string_lossy()
.into_owned()
}};
rust_strings.push(rust_str);
}}
// Clean up allocated C strings
for &c_str in &dset_out {{
unsafe {{ std::alloc::dealloc(c_str as *mut u8, std::alloc::Layout::array::<i8>(capacity).unwrap()) }};
}}
rc_return(rust_strings, rc)
}}
/// Writes the `{element}` array into the group `{group}` in the file.
///
/// # Parameters
///
/// * `data: &[{type_r}]` - A one-dimensional vector that contains the elements of the `{element}` array
/// to be written into the file. The vector should be flattened from a two-dimensional array with
/// dimensions `{dimensions_str}`.
///
/// # Returns
///
/// * `Result<(), ExitCode>` - Returns `Ok(())` if the operation is successful,
/// otherwise returns `Err(ExitCode)`.
pub fn write_{group_l}_{element_l}(&self, data: &[&str]) -> Result<(), ExitCode> {{
let mut size = 0;
// Find longest string
for s in data {{
let l = s.len();
size = if l>size {{l}} else {{size}};
}}
size += 1;
let data_c : Vec<CString> = data.iter().map(|&x| string_to_c(x)).collect::<Vec<_>>();
let data_c : Vec<*const c_char> = data_c.iter().map(|x| x.as_ptr() as *const c_char).collect::<Vec<_>>();
let size : i32 = size.try_into().expect("try_into failed in write_{group}_{element} (size)");
let data_c = data_c.as_ptr() as *mut *const c_char;
let rc = unsafe {{ c::trexio_write_{group}_{element}(self.ptr, data_c, size) }};
rc_return((), rc)
}}
"#));
},
"float sparse" => {
let size = dimensions.len();
let typ = [ "(", (vec![ "usize" ; size ]).join(", ").as_str(),", f64)"].join("");
r.push(format!(r#"
/// Reads a buffer of {element} from group {group}.
///
/// # Parameters
///
/// * `offset: usize` - The starting point in the array from which data will be read.
/// * `buffer_size: usize` - The size of the buffer in which read data will be stored.
///
/// # Returns
///
/// * `Result<Vec<{typ}>, ExitCode>` - Returns a vector of tuples containing
/// the indices and the value of the element. The vector has a length of at most `buffer_size`.
///
/// # Notes
///
/// The reading process is a buffered operation, meaning that only a segment of the full array
/// is read into the memory.
pub fn read_{group_l}_{element_l}(&self, offset: usize, buffer_size:usize) -> Result<Vec<{typ}>, ExitCode> {{
let mut idx = Vec::<i32>::with_capacity({size}*buffer_size);
let mut val = Vec::<f64>::with_capacity(buffer_size);
let idx_ptr = idx.as_ptr() as *mut i32;
let val_ptr = val.as_ptr() as *mut f64;
let offset: i64 = offset.try_into().expect("try_into failed in read_{group}_{element} (offset)");
let mut buffer_size_read: i64 = buffer_size.try_into().expect("try_into failed in read_{group}_{element} (buffer_size)");
let rc = unsafe {{ c::trexio_read_safe_{group}_{element}(self.ptr,
offset, &mut buffer_size_read, idx_ptr, buffer_size_read, val_ptr, buffer_size_read)
}};
let rc = match ExitCode::from(rc) {{
ExitCode::End => ExitCode::to_c(&ExitCode::Success),
_ => rc
}};
let buffer_size_read: usize = buffer_size_read.try_into().expect("try_into failed in read_{group}_{element} (buffer_size)");
unsafe {{ idx.set_len({size}*buffer_size_read) }};
unsafe {{ val.set_len(buffer_size_read) }};
let idx: Vec::<&[i32]> = idx.chunks({size}).collect();
let mut result = Vec::<{typ}>::with_capacity(buffer_size);
for (i, v) in zip(idx, val) {{
result.push( ("#));
let mut x = Vec::new();
for k in 0..size {
x.push(format!("i[{k}].try_into().unwrap()"))
};
x.push("v));\n }\n rc_return(result, rc)\n}".to_string());
r.push(x.join(", "));
r.push(format!(r#"/// Writes a buffer of {element} from group {group}.
///
/// # Parameters
///
/// * `offset: usize` - The starting point in the array at which data will be written.
/// * `data: &[{typ}]` - A slice of tuples containing the indices and the value of the element.
///
/// # Returns
///
/// * `Result<(), ExitCode>` - Returns `Ok(())` if the writing operation is successful,
/// otherwise returns `Err(ExitCode)`.
///
/// # Notes
///
/// The writing process is a buffered operation, meaning that only a segment of the full array
/// is written into the file.
pub fn write_{group_l}_{element_l}(&self, offset: usize, data: &[{typ}]) -> Result<(), ExitCode> {{
let mut idx = Vec::<i32>::with_capacity({size}*data.len());
let mut val = Vec::<f64>::with_capacity(data.len());
for d in data {{ "#));
let mut x = Vec::new();
for k in 0..size {
x.push(format!(" idx.push(d.{k}.try_into().unwrap());"))
};
r.push(x.join("\n"));
r.push(format!(r#"
val.push(d.{size});
}}
let size_max: i64 = data.len().try_into().expect("try_into failed in write_{group}_{element} (size_max)");
let buffer_size = size_max;
let idx_ptr = idx.as_ptr() as *const i32;
let val_ptr = val.as_ptr() as *const f64;
let offset: i64 = offset.try_into().expect("try_into failed in write_{group}_{element} (offset)");
let rc = unsafe {{ c::trexio_write_safe_{group}_{element}(self.ptr,
offset, buffer_size, idx_ptr, size_max, val_ptr, size_max) }};
rc_return((), rc)
}}"#));
},
_ => {}
}
}
}
}
r
}
@ -357,6 +641,7 @@ fn make_functions() -> std::io::Result<()> {
let mut r: Vec<String> = vec![
String::from("
use std::ffi::CString;
use std::iter::zip;
/// This implementation block includes additional functions automatically generated from tables.
/// For more details, refer to [TREXIO tables documentation](https://trex-coe.github.io/trexio/trex.html).
@ -369,7 +654,7 @@ impl File {
r.append(&mut make_has_functions(&data));
r.append(&mut make_scalar_functions(&data));
// r.append(&mut make_array_functions(&data));
r.append(&mut make_array_functions(&data));
r.push(String::from("}"));

1
rust/trexio/src/lib.rs
View File

@ -258,4 +258,3 @@ impl File {
}
include!("generated.rs");
include!("generated_py.rs");